{"id":138677,"date":"2024-10-21T13:58:14","date_gmt":"2024-10-21T08:28:14","guid":{"rendered":"https:\/\/pwonlyias.com\/stage\/?post_type=daily-quiz&#038;p=138677"},"modified":"2024-10-21T13:58:14","modified_gmt":"2024-10-21T08:28:14","slug":"daily-static-quiz-for-upsc-21th-october-2024","status":"publish","type":"daily-quiz","link":"https:\/\/pwonlyias.com\/stage\/daily-quiz\/daily-static-quiz-for-upsc-21th-october-2024","title":{"rendered":"Daily Static Quiz for UPSC: 21th October 2024"},"content":{"rendered":"        <div class=\"wpAdvQuiz_content\" id=\"wpAdvQuiz_869\">\n                    <div style=\"display: none;\" class=\"wpAdvQuiz_time_limit\">\n            <div class=\"time\">Time limit: <span>0<\/span><\/div>\n            <div class=\"wpAdvQuiz_progress\"><\/div>\n        <\/div>\n                <div class=\"wpAdvQuiz_checkPage\" style=\"display: none;\">\n            <h4 class=\"wpAdvQuiz_header\">Quiz-summary<\/h4>\n\n            <p>\n                <span>0<\/span> of 5 questions completed            <\/p>\n\n            <p>Questions:<\/p>\n\n            <div style=\"margin-bottom: 20px;\" class=\"wpAdvQuiz_box\">\n                <ol>\n                                            <li>1<\/li>\n                                            <li>2<\/li>\n                                            <li>3<\/li>\n                                            <li>4<\/li>\n                                            <li>5<\/li>\n                                    <\/ol>\n                <div style=\"clear: both;\"><\/div>\n            <\/div>\n\n            \n            <input type=\"button\" name=\"endQuizSummary\" value=\"Finish quiz\"\n                   class=\"wpAdvQuiz_button\" \n\t\t\t\t    style=\"width:px !Important; height:px !Important; background-color:  !important\">\n        <\/div>\n                <div class=\"wpAdvQuiz_infopage\" style=\"display: none;\">\n            <h4>Information<\/h4>\n\n            \n            <input type=\"button\" name=\"endInfopage\" value=\"Finish quiz\"\n                   class=\"wpAdvQuiz_button\"\n\t\t\t\t   style=\"width:px !Important; height:px !Important; background-color:  !important\">\n        <\/div>\n                <div class=\"wpAdvQuiz_text\">\n            <p>\n                <p>This quiz is based on <strong>UPSC STATIC SYLLABUS<\/strong> and is posted regularly on the PWOnlyIAS website for UPSC IAS.<\/p>\n<p><strong>To view Solutions, follow these instructions:<\/strong><\/p>\n<ol>\n<li>To Start quiz click on \u2013 \u2018<strong>Start Quiz<\/strong>\u2019<\/li>\n<li>Solve all <strong>Questions<\/strong>.<\/li>\n<li>Click on \u00a0\u2018<strong>Quiz Summary&#8217;<\/strong><\/li>\n<li>Click on \u2018<strong>Finish Quiz<\/strong>\u2019<\/li>\n<li>\u00a0Click on <strong>\u2018View Questions<\/strong>\u2019 button to see the all <strong>Explanations<\/strong>.<\/li>\n<\/ol>\n            <\/p>\n\n            \n            <div>\n                <input class=\"wpAdvQuiz_button\" type=\"button\" value=\"Start quiz\"\n                       name=\"startQuiz\" style=\"width:px !Important; height:px !Important; background-color:  !important\">\n            <\/div>\n        <\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_lock\">\n            <p>\n                You have already completed the quiz before. Hence you can not start it again.            <\/p>\n        <\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_loadQuiz\">\n            <p>\n                Quiz is loading...            <\/p>\n        <\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_startOnlyRegisteredUser\">\n            <p>\n                You must sign in or sign up to start the quiz.            <\/p>\n        <\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_prerequisite\">\n            <p>\n                You have to finish following quiz, to start this quiz:                <span><\/span>\n            <\/p>\n        <\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_results\">\n            <h4 class=\"wpAdvQuiz_header\">Results<\/h4>\n                            <p>\n                    <span class=\"wpAdvQuiz_correct_answer\">0<\/span> of <span>5<\/span> questions answered correctly                <\/p>\n                            <p class=\"wpAdvQuiz_quiz_time\">\n                    Your time: <span><\/span>                <\/p>\n                        <p class=\"wpAdvQuiz_time_limit_expired\" style=\"display: none;\">\n                Time has elapsed            <\/p>\n                            <p class=\"wpAdvQuiz_points\">\n                    You have reached <span>0<\/span> of <span>0<\/span> points, (<span>0<\/span>)                <\/p>\n                                        <div class=\"wpAdvQuiz_resultTable\">\n                    <table>\n                        <tbody>\n                        <tr>\n                            <td class=\"wpAdvQuiz_resultName\">Average score<\/td>\n                            <td class=\"wpAdvQuiz_resultValue\">\n                                <div style=\"background-color: #6CA54C;\">&nbsp;<\/div>\n                                <span>&nbsp;<\/span>\n                            <\/td>\n                        <\/tr>\n                        <tr>\n                            <td class=\"wpAdvQuiz_resultName\">Your score<\/td>\n                            <td class=\"wpAdvQuiz_resultValue\">\n                                <div style=\"background-color: #F79646;\">&nbsp;<\/div>\n                                <span>&nbsp;<\/span>\n                            <\/td>\n                        <\/tr>\n                        <\/tbody>\n                    <\/table>\n                <\/div>\n            \t\t\n            <div class=\"wpAdvQuiz_catOverview\" >\n                <h4>Categories<\/h4>\n\n                <div style=\"margin-top: 10px;\">\n                    <ol>\n                                                    <li data-category_id=\"0\">\n                                <span class=\"wpAdvQuiz_catName\">Not categorized<\/span>\n                                <span class=\"wpAdvQuiz_catPercent\">0%<\/span>\n                            <\/li>\n                                            <\/ol>\n                <\/div>\n            <\/div>\n\t\t\t\n            <div>\n                <ul class=\"wpAdvQuiz_resultsList\">\n                                            <li style=\"display: none;\">\n                            <div>\n                                                            <\/div>\n                        <\/li>\n                                    <\/ul>\n            <\/div>\n                    <div class=\"wpAdvQuiz_addToplist\" style=\"display: none;\">\n            <span style=\"font-weight: bold;\">Your result has been entered into leaderboard<\/span>\n\n            <div style=\"margin-top: 6px;\">\n                <div class=\"wpAdvQuiz_addToplistMessage\" style=\"display: none;\">Loading<\/div>\n                <div class=\"wpAdvQuiz_addBox\">\n                    <div>\n\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t<label>\n                                Name: <input type=\"text\" placeholder=\"Name\" name=\"wpAdvQuiz_toplistName\" maxlength=\"15\" size=\"16\"\n                                                                            style=\"width: 150px;\">\n                            <\/label>\n\t\t\t\t\t\t\t<label>\n                                E-Mail: <input type=\"email\"\n                                                                              placeholder=\"E-Mail\"\n                                                                              name=\"wpAdvQuiz_toplistEmail\" size=\"20\"\n                                                                              style=\"width: 150px;\">\n                            <\/label>\n\t\t\t\t\t\t<\/span>\n\n                        <div style=\"margin-top: 5px;\">\n                            <label>\n                                Captcha: <input type=\"text\" name=\"wpAdvQuiz_captcha\"\n                                                                               size=\"8\" style=\"width: 50px;\">\n                            <\/label>\n                            <input type=\"hidden\" name=\"wpAdvQuiz_captchaPrefix\" value=\"0\">\n                            <img decoding=\"async\" alt=\"captcha\" src=\"\" class=\"wpAdvQuiz_captchaImg\" style=\"vertical-align: middle;\">\n                        <\/div>\n                    <\/div>\n                    <input class=\"wpAdvQuiz_button2\" type=\"submit\" value=\"Send\"\n                           name=\"wpAdvQuiz_toplistAdd\">\n                <\/div>\n            <\/div>\n        <\/div>\n                    <div style=\"margin: 10px 0px;\">\n                                    <input class=\"wpAdvQuiz_button\" type=\"button\" name=\"restartQuiz\"\n                           value=\"Restart quiz\" \n\t\t\t\t\t\t   style=\"width:px !Important; height:px !Important; background-color:  !important\"\n\t\t\t\t\t\t   \">\n                                    <input class=\"wpAdvQuiz_button\" type=\"button\" name=\"reShowQuestion\"\n                           value=\"View questions\" \n\t\t\t\t\t\t   style=\"width:px !Important; height:px !Important; background-color:  !important\">\n                                                    <input class=\"wpAdvQuiz_button\" type=\"button\" name=\"showToplist\"\n                           value=\"Show leaderboard\"\n\t\t\t\t\t\t   style=\"width:px !Important; height:px !Important; background-color:  !important\">\n                            <\/div>\n        <\/div>\n                <div class=\"wpAdvQuiz_toplistShowInButton\" style=\"display: none;\">\n                    <div style=\"margin-bottom: 30px; margin-top: 10px;\" class=\"wpAdvQuiz_toplist\"\n             data-quiz_id=\"869\">\n                        <table class=\"wpAdvQuiz_toplistTable\">\n                <caption>maximum of 10 points<\/caption>\n                <thead>\n                <tr>\n                    <th style=\"width: 40px;\">Pos.<\/th>\n                    <th style=\"text-align: left !important;\">Name<\/th>\n                    <th style=\"width: 140px;\">Entered on<\/th>\n                    <th style=\"width: 60px;\">Points<\/th>\n                    <th style=\"width: 75px;\">Result<\/th>\n                <\/tr>\n                <\/thead>\n                <tbody>\n                <tr>\n                    <td colspan=\"5\">Table is loading<\/td>\n                <\/tr>\n                <tr style=\"display: none;\">\n                    <td colspan=\"5\">No data available<\/td>\n                <\/tr>\n                <tr style=\"display: none;\">\n                    <td><\/td>\n                    <td style=\"text-align: left !important;\"><\/td>\n                    <td style=\" color: rgb(124, 124, 124); font-size: x-small;\"><\/td>\n                    <td><\/td>\n                    <td><\/td>\n                <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n                <\/div>\n                <div class=\"wpAdvQuiz_reviewDiv\" style=\"display: none;\">\n            <div class=\"wpAdvQuiz_reviewQuestion\">\n                <ol>\n                                            <li>1<\/li>\n                                            <li>2<\/li>\n                                            <li>3<\/li>\n                                            <li>4<\/li>\n                                            <li>5<\/li>\n                                    <\/ol>\n                <div style=\"display: none;\"><\/div>\n            <\/div>\n            <div class=\"wpAdvQuiz_reviewLegend\">\n                <ol>\n                    <li>\n                        <span class=\"wpAdvQuiz_reviewColor\" style=\"background-color: #6CA54C;\"><\/span>\n                        <span class=\"wpAdvQuiz_reviewText\">Answered<\/span>\n                    <\/li>\n                    <li>\n                        <span class=\"wpAdvQuiz_reviewColor\" style=\"background-color: #FFB800;\"><\/span>\n                        <span class=\"wpAdvQuiz_reviewText\">Review<\/span>\n                    <\/li>\n                <\/ol>\n                <div style=\"clear: both;\"><\/div>\n            <\/div>\n            <div>\n                            <\/div>\n        <\/div>\n                <div class=\"wpAdvQuiz_quizAnker\" style=\"display: none;\"><\/div>\n                <div style=\"display: none;\" class=\"wpAdvQuiz_quiz\">\n            <ol class=\"wpAdvQuiz_list\">\n                                    <li class=\"wpAdvQuiz_listItem\" style=\"display: none;\">\n                        <div\n                            class=\"wpAdvQuiz_question_page\" style=display:none; >\n                            Question <span>1<\/span> of <span>5<\/span>                        <\/div>\n                        <h5 style=\"display: inline-block;\"\n                            class=\"wpAdvQuiz_header\">\n                            <span>1<\/span>. Question                        <\/h5>\n\n                                                    <span style=\"font-weight: bold; float: right;\">2 points<\/span>\n                            <div style=\"clear: both;\"><\/div>\n                        \n                                                <div class=\"wpAdvQuiz_question\" style=\"margin: 10px 0 0 0;\">\n                            <div class=\"wpAdvQuiz_question_text\">\n\t\t\t\t\t\t\t\t                                <p><b>Consider the following:<\/b><\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Halophytic adaptability<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Pneumatophores<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Stilt roots<\/span><\/li>\n<\/ol>\n<p><b>How many of the above adaptations are found in the mangrove ecosystem?<\/b><\/p>\n                            <\/div>\n                                                        <ul class=\"wpAdvQuiz_questionList\" data-question_id=\"5574\"\n                                data-type=\"single\">\n                                \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"0\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5574\"\n                                                       value=\"1\"> a) Only one\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"1\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5574\"\n                                                       value=\"2\"> b) Only two\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"2\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5574\"\n                                                       value=\"3\"> c) All three\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"3\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5574\"\n                                                       value=\"4\"> d) None\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                                                <\/ul>\n                        <\/div>\n                                                    <div class=\"wpAdvQuiz_response\" style=\"display: none;\">\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_correct\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tCorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: C<\/b><\/p>\n<p><b>Exp: <\/b><\/p>\n<p><b>Mangroves ecosystem\u00a0<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mangroves are littoral plants like trees and bushes having exceptional capacity for salt water tolerance (<\/span><b>Halophytic adaptability<\/b><span style=\"font-weight: 400\">), growing below high-water level of spring tides. <\/span><b>Hence, option 1 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">They have ability to absorb fresh water from saline water and require high solar radiation<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mangroves also produce <\/span><b>pneumatophores\/blind roots<\/b><span style=\"font-weight: 400\"> to overcome respiratory problems. <\/span><b>Hence, option 2 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><b>They have adventitious roots, also called stilt roots or prop roots<\/b><span style=\"font-weight: 400\">. As with banyan trees, certain mangrove species have roots that branch off from stems and branches and encroach on the ground a distance from the main stem. They are known as stilt roots due to their outward appearance and the fact that they serve as the major physical support for these. <\/span><b>Hence, option 3 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The Mangroves have lot of ecological and local benefits for communities as they:<\/span>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reduce inundation and moderate monsoonal tidal floods.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Prevent coastal soil erosion and enhance nutrient recycling.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Source of firewood, medicinal plants and edible plants to locals.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Provides employment opportunities.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138674 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2.webp\" alt=\"\" width=\"638\" height=\"479\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2.webp 638w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2-300x225.webp 300w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>PWOnlyIAS extra edge:\u00a0<\/b><\/p>\n<p><b>MANGROVES IN INDIA<\/b><span style=\"font-weight: 400\">:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">India houses the largest mangroves of the world: Sunderbans.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Sunderbans is home to the Royal Bengal Tiger and crocodiles.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Odisha&#8217;s Bhitarkanika mangroves are the 2nd largest in the Indian subcontinent.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Others are found at Godavari-Krishna deltaic regions of Andhra Pradesh.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In Gujarat they are found in the Gulf of Kachchh and Kori creek.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Andaman &amp; Nicobar Islands possess diverse undisturbed mangrove flora.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Condition of mangroves in some parts of India is improving while in some other places is experiencing degradation.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>                                <\/div>\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_incorrect\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tIncorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: C<\/b><\/p>\n<p><b>Exp: <\/b><\/p>\n<p><b>Mangroves ecosystem\u00a0<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mangroves are littoral plants like trees and bushes having exceptional capacity for salt water tolerance (<\/span><b>Halophytic adaptability<\/b><span style=\"font-weight: 400\">), growing below high-water level of spring tides. <\/span><b>Hence, option 1 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">They have ability to absorb fresh water from saline water and require high solar radiation<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mangroves also produce <\/span><b>pneumatophores\/blind roots<\/b><span style=\"font-weight: 400\"> to overcome respiratory problems. <\/span><b>Hence, option 2 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><b>They have adventitious roots, also called stilt roots or prop roots<\/b><span style=\"font-weight: 400\">. As with banyan trees, certain mangrove species have roots that branch off from stems and branches and encroach on the ground a distance from the main stem. They are known as stilt roots due to their outward appearance and the fact that they serve as the major physical support for these. <\/span><b>Hence, option 3 is correct.<\/b><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The Mangroves have lot of ecological and local benefits for communities as they:<\/span>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reduce inundation and moderate monsoonal tidal floods.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Prevent coastal soil erosion and enhance nutrient recycling.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Source of firewood, medicinal plants and edible plants to locals.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Provides employment opportunities.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138674 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2.webp\" alt=\"\" width=\"638\" height=\"479\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2.webp 638w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-1-2-2-300x225.webp 300w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>PWOnlyIAS extra edge:\u00a0<\/b><\/p>\n<p><b>MANGROVES IN INDIA<\/b><span style=\"font-weight: 400\">:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">India houses the largest mangroves of the world: Sunderbans.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Sunderbans is home to the Royal Bengal Tiger and crocodiles.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Odisha&#8217;s Bhitarkanika mangroves are the 2nd largest in the Indian subcontinent.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Others are found at Godavari-Krishna deltaic regions of Andhra Pradesh.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In Gujarat they are found in the Gulf of Kachchh and Kori creek.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Andaman &amp; Nicobar Islands possess diverse undisturbed mangrove flora.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Condition of mangroves in some parts of India is improving while in some other places is experiencing degradation.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n                                <\/div>\n                            <\/div>\n                        \n                        \t\t\n                        \t\t\t\t\t\t\n                        <input type=\"button\" name=\"back\" value=\"Back\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: left !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   width:px !Important; height:px !Important; background-color:  !important\">\n                        \t\t\t\t\t\t<input type=\"button\" name=\"next\" value=\"Next\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right; display: none;\n\t\t\t\t\t\t\t\twidth:px !Important; height:px !Important; background-color:  !important\">\n                        <input type=\"button\" name=\"check\" value=\"Check\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t<input type=\"button\" name=\"clear\" value=\"Clear\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: block;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t                     \n\t\t\t\t\n\t\t\t\t\t\t                        <div style=\"clear: both;\"><\/div>\n\n                                                    <div style=\"margin-bottom: 20px;\"><\/div>\n                        \n                    <\/li>\n\n                                    <li class=\"wpAdvQuiz_listItem\" style=\"display: none;\">\n                        <div\n                            class=\"wpAdvQuiz_question_page\" style=display:none; >\n                            Question <span>2<\/span> of <span>5<\/span>                        <\/div>\n                        <h5 style=\"display: inline-block;\"\n                            class=\"wpAdvQuiz_header\">\n                            <span>2<\/span>. Question                        <\/h5>\n\n                                                    <span style=\"font-weight: bold; float: right;\">2 points<\/span>\n                            <div style=\"clear: both;\"><\/div>\n                        \n                                                <div class=\"wpAdvQuiz_question\" style=\"margin: 10px 0 0 0;\">\n                            <div class=\"wpAdvQuiz_question_text\">\n\t\t\t\t\t\t\t\t                                <p><b>Which one of the following can be termed as man made ecosystem?<\/b><\/p>\n                            <\/div>\n                                                        <ul class=\"wpAdvQuiz_questionList\" data-question_id=\"5575\"\n                                data-type=\"single\">\n                                \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"0\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5575\"\n                                                       value=\"1\"> a) Lakes\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"1\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5575\"\n                                                       value=\"2\"> b) Grassland\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"2\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5575\"\n                                                       value=\"3\"> c) Tidal estuary \r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"3\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5575\"\n                                                       value=\"4\"> d) Aquaculture pond\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                                                <\/ul>\n                        <\/div>\n                                                    <div class=\"wpAdvQuiz_response\" style=\"display: none;\">\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_correct\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tCorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: D<\/b><\/p>\n<p><b>Exp: <\/b><\/p>\n<p><b>Ecosystems are classified as <\/b><span style=\"font-weight: 400\">Natural ecosystems and Man-made ecosystems.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>Natural ecosystems:<\/b><span style=\"font-weight: 400\"> They are totally dependent on solar radiation E.g.<\/span><b> forests, grasslands, oceans, lakes, rivers and deserts<\/b><span style=\"font-weight: 400\">. They provide food, fuel, fodder and medicines. Certain ecosystems depend on solar radiation and energy subsidies (alternative sources) such as wind, rain and tides. e.g <\/span><b>tropical rain forests, tidal estuaries and coral reefs.<\/b><\/li>\n<li style=\"font-weight: 400\"><b>Man made ecosystems<\/b><b>:<\/b><span style=\"font-weight: 400\"> Those which are dependent on solar energy-e.g. <\/span><b>Agricultural fields and aquaculture ponds. <\/b><span style=\"font-weight: 400\">Those dependent on fossil fuel e.g. urban and industrial ecosystems.<\/span><\/li>\n<\/ul>                                <\/div>\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_incorrect\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tIncorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: D<\/b><\/p>\n<p><b>Exp: <\/b><\/p>\n<p><b>Ecosystems are classified as <\/b><span style=\"font-weight: 400\">Natural ecosystems and Man-made ecosystems.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>Natural ecosystems:<\/b><span style=\"font-weight: 400\"> They are totally dependent on solar radiation E.g.<\/span><b> forests, grasslands, oceans, lakes, rivers and deserts<\/b><span style=\"font-weight: 400\">. They provide food, fuel, fodder and medicines. Certain ecosystems depend on solar radiation and energy subsidies (alternative sources) such as wind, rain and tides. e.g <\/span><b>tropical rain forests, tidal estuaries and coral reefs.<\/b><\/li>\n<li style=\"font-weight: 400\"><b>Man made ecosystems<\/b><b>:<\/b><span style=\"font-weight: 400\"> Those which are dependent on solar energy-e.g. <\/span><b>Agricultural fields and aquaculture ponds. <\/b><span style=\"font-weight: 400\">Those dependent on fossil fuel e.g. urban and industrial ecosystems.<\/span><\/li>\n<\/ul>\n                                <\/div>\n                            <\/div>\n                        \n                        \t\t\n                        \t\t\t\t\t\t\n                        <input type=\"button\" name=\"back\" value=\"Back\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: left !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   width:px !Important; height:px !Important; background-color:  !important\">\n                        \t\t\t\t\t\t<input type=\"button\" name=\"next\" value=\"Next\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right; display: none;\n\t\t\t\t\t\t\t\twidth:px !Important; height:px !Important; background-color:  !important\">\n                        <input type=\"button\" name=\"check\" value=\"Check\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t<input type=\"button\" name=\"clear\" value=\"Clear\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: block;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t                     \n\t\t\t\t\n\t\t\t\t\t\t                        <div style=\"clear: both;\"><\/div>\n\n                                                    <div style=\"margin-bottom: 20px;\"><\/div>\n                        \n                    <\/li>\n\n                                    <li class=\"wpAdvQuiz_listItem\" style=\"display: none;\">\n                        <div\n                            class=\"wpAdvQuiz_question_page\" style=display:none; >\n                            Question <span>3<\/span> of <span>5<\/span>                        <\/div>\n                        <h5 style=\"display: inline-block;\"\n                            class=\"wpAdvQuiz_header\">\n                            <span>3<\/span>. Question                        <\/h5>\n\n                                                    <span style=\"font-weight: bold; float: right;\">2 points<\/span>\n                            <div style=\"clear: both;\"><\/div>\n                        \n                                                <div class=\"wpAdvQuiz_question\" style=\"margin: 10px 0 0 0;\">\n                            <div class=\"wpAdvQuiz_question_text\">\n\t\t\t\t\t\t\t\t                                <p><b>With reference to the Biosphere, consider the following statements:<\/b><\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Biosphere cannot be found at extremes of the North and South Pole.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The ecosphere is an essential part of the biosphere.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The biosphere includes both living and non-living components, which are interdependent and interrelated in terms of their structure, components, and functioning.<\/span><\/li>\n<\/ol>\n<p><b>How many of the above statements are correct?<\/b><\/p>\n                            <\/div>\n                                                        <ul class=\"wpAdvQuiz_questionList\" data-question_id=\"5576\"\n                                data-type=\"single\">\n                                \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"0\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5576\"\n                                                       value=\"1\"> a) Only one\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"1\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5576\"\n                                                       value=\"2\"> b) Only two\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"2\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5576\"\n                                                       value=\"3\"> c) All three\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"3\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5576\"\n                                                       value=\"4\"> d) None\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                                                <\/ul>\n                        <\/div>\n                                                    <div class=\"wpAdvQuiz_response\" style=\"display: none;\">\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_correct\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tCorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: B<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Statement 1 is correct<\/b><b>: <\/b><span style=\"font-weight: 400\">The term \u2018Biosphere\u2019 was given by geologist Edward Suezz in 1875. <\/span><b>The biosphere is absent at extremes of the north and south poles<\/b><span style=\"font-weight: 400\">. Occasionally spores of fungi and bacteria do occur at heights beyond 8000 mts, but they are not metabolically active and represent only the dormant life.<\/span><\/p>\n<p><b>Statement 2 is incorrect<\/b><b>: <\/b><span style=\"font-weight: 400\">Recently, the term ecosphere has been used more commonly. It is used to denote the biosphere (living components) along with its three abiotic components \u2013atmosphere, hydrosphere and lithosphere of the earth as one entity (unit).<\/span><b> Ecosphere = Biosphere + Lithosphere + Hydrosphere + Atmosphere.<\/b><\/p>\n<p><b>Statement 3 is correct<\/b><b>: <\/b><span style=\"font-weight: 400\">The global environment consists of three main subdivisions:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The hydrosphere, which includes all the water components,<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The lithosphere comprises the solid components of the earth\u2019s crust, and<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The atmosphere formed from the gaseous envelope of the earth. The <\/span><b>biosphere consists of the lower atmosphere, the land and the oceans, rivers and lakes, where living beings are found.<\/b><\/li>\n<\/ul>\n<p><b>It has both living and nonliving components, which are interdependent and interrelated in terms of their structure, components, and functioning.<\/b><\/p>                                <\/div>\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_incorrect\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tIncorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: B<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Statement 1 is correct<\/b><b>: <\/b><span style=\"font-weight: 400\">The term \u2018Biosphere\u2019 was given by geologist Edward Suezz in 1875. <\/span><b>The biosphere is absent at extremes of the north and south poles<\/b><span style=\"font-weight: 400\">. Occasionally spores of fungi and bacteria do occur at heights beyond 8000 mts, but they are not metabolically active and represent only the dormant life.<\/span><\/p>\n<p><b>Statement 2 is incorrect<\/b><b>: <\/b><span style=\"font-weight: 400\">Recently, the term ecosphere has been used more commonly. It is used to denote the biosphere (living components) along with its three abiotic components \u2013atmosphere, hydrosphere and lithosphere of the earth as one entity (unit).<\/span><b> Ecosphere = Biosphere + Lithosphere + Hydrosphere + Atmosphere.<\/b><\/p>\n<p><b>Statement 3 is correct<\/b><b>: <\/b><span style=\"font-weight: 400\">The global environment consists of three main subdivisions:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The hydrosphere, which includes all the water components,<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The lithosphere comprises the solid components of the earth\u2019s crust, and<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The atmosphere formed from the gaseous envelope of the earth. The <\/span><b>biosphere consists of the lower atmosphere, the land and the oceans, rivers and lakes, where living beings are found.<\/b><\/li>\n<\/ul>\n<p><b>It has both living and nonliving components, which are interdependent and interrelated in terms of their structure, components, and functioning.<\/b><\/p>\n                                <\/div>\n                            <\/div>\n                        \n                        \t\t\n                        \t\t\t\t\t\t\n                        <input type=\"button\" name=\"back\" value=\"Back\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: left !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   width:px !Important; height:px !Important; background-color:  !important\">\n                        \t\t\t\t\t\t<input type=\"button\" name=\"next\" value=\"Next\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right; display: none;\n\t\t\t\t\t\t\t\twidth:px !Important; height:px !Important; background-color:  !important\">\n                        <input type=\"button\" name=\"check\" value=\"Check\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t<input type=\"button\" name=\"clear\" value=\"Clear\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: block;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t                     \n\t\t\t\t\n\t\t\t\t\t\t                        <div style=\"clear: both;\"><\/div>\n\n                                                    <div style=\"margin-bottom: 20px;\"><\/div>\n                        \n                    <\/li>\n\n                                    <li class=\"wpAdvQuiz_listItem\" style=\"display: none;\">\n                        <div\n                            class=\"wpAdvQuiz_question_page\" style=display:none; >\n                            Question <span>4<\/span> of <span>5<\/span>                        <\/div>\n                        <h5 style=\"display: inline-block;\"\n                            class=\"wpAdvQuiz_header\">\n                            <span>4<\/span>. Question                        <\/h5>\n\n                                                    <span style=\"font-weight: bold; float: right;\">2 points<\/span>\n                            <div style=\"clear: both;\"><\/div>\n                        \n                                                <div class=\"wpAdvQuiz_question\" style=\"margin: 10px 0 0 0;\">\n                            <div class=\"wpAdvQuiz_question_text\">\n\t\t\t\t\t\t\t\t                                <p><b>With reference to ecosystems, the term \u2018ecological efficiency\u2019 relates to which of the following?<\/b><\/p>\n                            <\/div>\n                                                        <ul class=\"wpAdvQuiz_questionList\" data-question_id=\"5577\"\n                                data-type=\"single\">\n                                \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"0\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5577\"\n                                                       value=\"1\"> a) It is the ability of an ecology to maintain stable system properties.                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"1\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5577\"\n                                                       value=\"2\"> b) The ratio of amount of energy obtained from lower trophic levels to amount of energy transferred from higher trophic levels.                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"2\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5577\"\n                                                       value=\"3\"> c) The amount of biomass produced per unit area over a time period by plants.                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"3\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5577\"\n                                                       value=\"4\"> d) The total energy produced by all living organisms within an ecosystem.\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                                                <\/ul>\n                        <\/div>\n                                                    <div class=\"wpAdvQuiz_response\" style=\"display: none;\">\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_correct\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tCorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: B<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Ecological efficiency<\/b><b> : <\/b><span style=\"font-weight: 400\">In an ecosystem the amount of energy decreases at each subsequent trophic level because at each trophic a part of the available energy is lost in respiration or used up in metabolism.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A part of energy is lost at each transformation, i.e. when it moves from lower to higher trophic level as heat.<\/span><\/li>\n<\/ul>\n<ul>\n<li><b>It is the ratio between the amount of energy acquired from the lower trophic level and the amount of energy transferred from higher trophic level is called ecological efficiency.<\/b><\/li>\n<\/ul>\n<ul>\n<li><b>Lindman in 1942 defined these ecological efficiencies for the 1st time and proposed 10% rule<\/b><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li style=\"font-weight: 400\"><b>E.g<\/b><span style=\"font-weight: 400\">. if autotrophs produce 100 cal, herbivores will be able to store 10 cal. and carnivores 1 cal. However, there may be slight variations in different ecosystems and ecological efficiencies may range from 5 to 35%.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>                                <\/div>\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_incorrect\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tIncorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: B<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Ecological efficiency<\/b><b> : <\/b><span style=\"font-weight: 400\">In an ecosystem the amount of energy decreases at each subsequent trophic level because at each trophic a part of the available energy is lost in respiration or used up in metabolism.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A part of energy is lost at each transformation, i.e. when it moves from lower to higher trophic level as heat.<\/span><\/li>\n<\/ul>\n<ul>\n<li><b>It is the ratio between the amount of energy acquired from the lower trophic level and the amount of energy transferred from higher trophic level is called ecological efficiency.<\/b><\/li>\n<\/ul>\n<ul>\n<li><b>Lindman in 1942 defined these ecological efficiencies for the 1st time and proposed 10% rule<\/b><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li style=\"font-weight: 400\"><b>E.g<\/b><span style=\"font-weight: 400\">. if autotrophs produce 100 cal, herbivores will be able to store 10 cal. and carnivores 1 cal. However, there may be slight variations in different ecosystems and ecological efficiencies may range from 5 to 35%.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n                                <\/div>\n                            <\/div>\n                        \n                        \t\t\n                        \t\t\t\t\t\t\n                        <input type=\"button\" name=\"back\" value=\"Back\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: left !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   width:px !Important; height:px !Important; background-color:  !important\">\n                        \t\t\t\t\t\t<input type=\"button\" name=\"next\" value=\"Next\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right; display: none;\n\t\t\t\t\t\t\t\twidth:px !Important; height:px !Important; background-color:  !important\">\n                        <input type=\"button\" name=\"check\" value=\"Check\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t<input type=\"button\" name=\"clear\" value=\"Clear\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: block;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t                     \n\t\t\t\t\n\t\t\t\t\t\t                        <div style=\"clear: both;\"><\/div>\n\n                                                    <div style=\"margin-bottom: 20px;\"><\/div>\n                        \n                    <\/li>\n\n                                    <li class=\"wpAdvQuiz_listItem\" style=\"display: none;\">\n                        <div\n                            class=\"wpAdvQuiz_question_page\" style=display:none; >\n                            Question <span>5<\/span> of <span>5<\/span>                        <\/div>\n                        <h5 style=\"display: inline-block;\"\n                            class=\"wpAdvQuiz_header\">\n                            <span>5<\/span>. Question                        <\/h5>\n\n                                                    <span style=\"font-weight: bold; float: right;\">2 points<\/span>\n                            <div style=\"clear: both;\"><\/div>\n                        \n                                                <div class=\"wpAdvQuiz_question\" style=\"margin: 10px 0 0 0;\">\n                            <div class=\"wpAdvQuiz_question_text\">\n\t\t\t\t\t\t\t\t                                <p><b>With reference to energy flow in a food chain, consider the following statements:<\/b><\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">There is a multi-directional flow of energy at each trophic level in the food chain.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The amount of energy keeps on increasing from one trophic level to another.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Organisms at higher trophic levels depend on organisms at lower levels for energy<\/span><\/li>\n<\/ol>\n<p><b>Which of the statements given above is\/are <\/b><b><i>incorrect?<\/i><\/b><\/p>\n                            <\/div>\n                                                        <ul class=\"wpAdvQuiz_questionList\" data-question_id=\"5578\"\n                                data-type=\"single\">\n                                \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"0\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5578\"\n                                                       value=\"1\"> a) 1 and 2 only \r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"1\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5578\"\n                                                       value=\"2\"> b) 2 and 3 only\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"2\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5578\"\n                                                       value=\"3\"> c) 2 only\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                    \n                                    <li class=\"wpAdvQuiz_questionListItem\" data-pos=\"3\">\n\n                                                                                                                                <span style=\"display:none;\"><\/span>\n                                            <label>\n                                                <input class=\"wpAdvQuiz_questionInput\"\n                                                       type=\"radio\"\n                                                       name=\"question_869_5578\"\n                                                       value=\"4\"> d) 1,2 and 3\r\n                                            <\/label>\n\n                                                                            <\/li>\n                                                                <\/ul>\n                        <\/div>\n                                                    <div class=\"wpAdvQuiz_response\" style=\"display: none;\">\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_correct\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tCorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: A<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Statement 1 is incorrect:<\/b> <span style=\"font-weight: 400\">There is<\/span><b> unidirectional flow of energy <\/b><span style=\"font-weight: 400\">in the food chain from sun to producers and then to a series of consumers of various types. Thus, a food chain is always straight and proceeds in a progressing straight line.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138675 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-19.webp\" alt=\"\" width=\"212\" height=\"194\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><b>Statement 2 is incorrect:<\/b> <span style=\"font-weight: 400\">The important point to note is that the amount of energy decreases at successive trophic levels. <\/span><b>Usually 80 to 90% of potential energy is lost as heat at each transfer<\/b><span style=\"font-weight: 400\"> on the basis of the second law of thermodynamics (transformation of energy involves loss of unavailable energy).<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138676 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1.webp\" alt=\"\" width=\"564\" height=\"424\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1.webp 564w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1-300x226.webp 300w\" sizes=\"(max-width: 564px) 100vw, 564px\" \/><\/p>\n<p><b>Statement 3 is correct:<\/b> <span style=\"font-weight: 400\">There is repeated eating at each trophic level in the food chain in which each group eats the smaller one and is eaten by the larger one at the next trophic level. Thus, it involves a nutritive interaction between the biotic components of an ecosystem. Any organism that dies is transformed into detritus or dead biomass, which is used as a fuel source by decomposers. <\/span><b>For their energy needs, organisms at each trophic level rely on those at the lower trophic level.<\/b><\/p>                                <\/div>\n                                <div style=\"display: none;\" class=\"wpAdvQuiz_incorrect\">\n                                                                            <span class=\"wpAdvQuiz_respone_span\">\n\t\t\t\t\t\t\t\t\tIncorrect\t\t\t\t\t\t\t\t<\/span><br>\n                                    <p><b>Ans: A<\/b><\/p>\n<p><b>Exp:<\/b><\/p>\n<p><b>Statement 1 is incorrect:<\/b> <span style=\"font-weight: 400\">There is<\/span><b> unidirectional flow of energy <\/b><span style=\"font-weight: 400\">in the food chain from sun to producers and then to a series of consumers of various types. Thus, a food chain is always straight and proceeds in a progressing straight line.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138675 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-19.webp\" alt=\"\" width=\"212\" height=\"194\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><b>Statement 2 is incorrect:<\/b> <span style=\"font-weight: 400\">The important point to note is that the amount of energy decreases at successive trophic levels. <\/span><b>Usually 80 to 90% of potential energy is lost as heat at each transfer<\/b><span style=\"font-weight: 400\"> on the basis of the second law of thermodynamics (transformation of energy involves loss of unavailable energy).<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-138676 aligncenter\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1.webp\" alt=\"\" width=\"564\" height=\"424\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1.webp 564w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/10\/unnamed-20-1-1-300x226.webp 300w\" sizes=\"(max-width: 564px) 100vw, 564px\" \/><\/p>\n<p><b>Statement 3 is correct:<\/b> <span style=\"font-weight: 400\">There is repeated eating at each trophic level in the food chain in which each group eats the smaller one and is eaten by the larger one at the next trophic level. Thus, it involves a nutritive interaction between the biotic components of an ecosystem. Any organism that dies is transformed into detritus or dead biomass, which is used as a fuel source by decomposers. <\/span><b>For their energy needs, organisms at each trophic level rely on those at the lower trophic level.<\/b><\/p>\n                                <\/div>\n                            <\/div>\n                        \n                        \t\t\n                        \t\t\t\t\t\t\n                        <input type=\"button\" name=\"back\" value=\"Back\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: left !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   width:px !Important; height:px !Important; background-color:  !important\">\n                        \t\t\t\t\t\t<input type=\"button\" name=\"next\" value=\"Next\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right; display: none;\n\t\t\t\t\t\t\t\twidth:px !Important; height:px !Important; background-color:  !important\">\n                        <input type=\"button\" name=\"check\" value=\"Check\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: none;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t<input type=\"button\" name=\"clear\" value=\"Clear\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\"\n                               style=\"float: right !important; margin-right: 10px !important; display: block;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n\t\t\t\t\t\t                     \n\t\t\t\t\n\t\t\t\t\t\t                        <div style=\"clear: both;\"><\/div>\n\n                                                    <div style=\"margin-bottom: 20px;\"><\/div>\n                        \n                    <\/li>\n\n                            <\/ol>\n                            <div>\n                    <input type=\"button\" name=\"wpAdvQuiz_pageLeft\"\n                           data-text=\"Page %d\"\n                           style=\"float: left; display: none;\" class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\">\n                    <input type=\"button\" name=\"wpAdvQuiz_pageRight\"\n                           data-text=\"Page %d\"\n                           style=\"float: right; display: none;\" class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\">\n\n                                            <input type=\"button\" name=\"checkSingle\"\n                               value=\"Quiz-summary\"\n                               class=\"wpAdvQuiz_button wpAdvQuiz_QuestionButton\" style=\"float: right;\n\t\t\t\t\t\t\t   \twidth:px !Important; height:px !Important; background-color:  !important\">\n                    \n                    <div style=\"clear: both;\"><\/div>\n                <\/div>\n                    <\/div>\n                <\/div>\n                <script type=\"text\/javascript\">\n            window.wpAdvQuizInitList = window.wpAdvQuizInitList || [];\n\n            window.wpAdvQuizInitList.push({\n                id: '#wpAdvQuiz_869',\n                init: {\n                    quizId: 869,\n                    mode: 3,\n                    globalPoints: 10,\n                    timelimit: 0,\n                    resultsGrade: [0],\n                    bo: 640,\n                    qpp: 0,\n                    catPoints: [10],\n                    formPos: 0,\n                    lbn: \"Quiz-summary\",\n                    json: {\"5574\":{\"type\":\"single\",\"id\":5574,\"catId\":0,\"points\":2,\"correct\":[0,0,1,0]},\"5575\":{\"type\":\"single\",\"id\":5575,\"catId\":0,\"points\":2,\"correct\":[0,0,0,1]},\"5576\":{\"type\":\"single\",\"id\":5576,\"catId\":0,\"points\":2,\"correct\":[0,1,0,0]},\"5577\":{\"type\":\"single\",\"id\":5577,\"catId\":0,\"points\":2,\"correct\":[0,1,0,0]},\"5578\":{\"type\":\"single\",\"id\":5578,\"catId\":0,\"points\":2,\"correct\":[1,0,0,0]}}                }\n            });\n        <\/script>\n        \n","protected":false},"featured_media":0,"template":"","quiz-category":[4623],"acf":[],"_links":{"self":[{"href":"https:\/\/pwonlyias.com\/stage\/wp-json\/wp\/v2\/daily-quiz\/138677"}],"collection":[{"href":"https:\/\/pwonlyias.com\/stage\/wp-json\/wp\/v2\/daily-quiz"}],"about":[{"href":"https:\/\/pwonlyias.com\/stage\/wp-json\/wp\/v2\/types\/daily-quiz"}],"wp:attachment":[{"href":"https:\/\/pwonlyias.com\/stage\/wp-json\/wp\/v2\/media?parent=138677"}],"wp:term":[{"taxonomy":"quiz-category","embeddable":true,"href":"https:\/\/pwonlyias.com\/stage\/wp-json\/wp\/v2\/quiz-category?post=138677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}