{"id":5435,"date":"2025-12-26T17:08:14","date_gmt":"2025-12-26T17:08:14","guid":{"rendered":"https:\/\/mehnatt.com\/?p=5435"},"modified":"2025-12-26T17:08:15","modified_gmt":"2025-12-26T17:08:15","slug":"mcqs-based-on-environment-33","status":"publish","type":"post","link":"https:\/\/mehnatt.com\/?p=5435","title":{"rendered":"MCQs Based On Environment &#8211; (33)"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Q1. The &#8220;Four R&#8217;s&#8221; in waste management include all EXCEPT:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Refuse<\/li>\n\n\n\n<li style=\"font-size:17px\">Replace<\/li>\n\n\n\n<li style=\"font-size:17px\">Reduce<\/li>\n\n\n\n<li style=\"font-size:17px\">Reuse<\/li>\n<\/ol>\n\n\n\n<button class=\"acc\">View Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"padding-top:5px;color:#27302a;font-size:1.2rem;\"><b>Correct Option:<\/b> 2. Replace <br\/>\n<strong>Explanation:<\/strong> The Four R\u2019s are Refuse, Reduce, Reuse, and Recycle. &#8220;Replace&#8221; is not part of the standard four R\u2019s in sustainable waste management.\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Q2. What is the safe indoor noise level as recommended by the WHO?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">50 dB<\/li>\n\n\n\n<li style=\"font-size:17px\">40 dB<\/li>\n\n\n\n<li style=\"font-size:17px\">30 dB<\/li>\n\n\n\n<li style=\"font-size:17px\">60 dB<\/li>\n<\/ol>\n\n\n\n<button class=\"acc\">View Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"padding-top:5px;color:#27302a;font-size:1.2rem;\"><b>Correct Option:<\/b> 3. 30 dB <br\/>\n<strong>Explanation:<\/strong> The World Health Organization (WHO) recommends indoor noise levels to be below 30 decibels to avoid adverse health effects like stress and sleep disturbances.\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Q3. What is the most common environmental effect of light pollution?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Coral bleaching<\/li>\n\n\n\n<li style=\"font-size:17px\">Disruption of nocturnal animal behavior<\/li>\n\n\n\n<li style=\"font-size:17px\">Soil fertility increase<\/li>\n\n\n\n<li style=\"font-size:17px\">Acid rain<\/li>\n<\/ol>\n\n\n\n<button class=\"acc\">View Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"padding-top:5px;color:#27302a;font-size:1.2rem;\"><b>Correct Option:<\/b> 2. Disruption of nocturnal animal behavior <br\/>\n<strong>Explanation:<\/strong> Light pollution disrupts the natural activities of nocturnal animals (e.g., migration, feeding, and reproduction) by mimicking daylight conditions at night.\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Q4. Which of the following control methods helps reduce <strong>both<\/strong> soil and thermal pollution?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Afforestation<\/li>\n\n\n\n<li style=\"font-size:17px\">Sprinkler irrigation<\/li>\n\n\n\n<li style=\"font-size:17px\">Pesticide application<\/li>\n\n\n\n<li style=\"font-size:17px\">Use of air purifiers<\/li>\n<\/ol>\n\n\n\n<button class=\"acc\">View Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"padding-top:5px;color:#27302a;font-size:1.2rem;\"><b>Correct Option:<\/b> 1. Afforestation <br\/>\n<strong>Explanation:<\/strong><br\/> Afforestation (planting trees) helps in:<br\/>\n\n&bull; Soil conservation (prevents erosion and pollution),<br\/>\n\n&bull; Reducing thermal pollution by shading water bodies and lowering temperature.\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Q5. Which of the following methods is used in industries to reduce thermal pollution by cooling heated water before discharging it?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Reverse osmosis<\/li>\n\n\n\n<li style=\"font-size:17px\">Cooling towers<\/li>\n\n\n\n<li style=\"font-size:17px\">Bioremediation<\/li>\n\n\n\n<li style=\"font-size:17px\">Incineration<\/li>\n<\/ol>\n\n\n\n<button class=\"acc\">View Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"padding-top:5px;color:#27302a;font-size:1.2rem;\"><b>Correct Option:<\/b> 2. Cooling towers<br\/>\n<strong>Explanation:<\/strong><br\/> Cooling towers and cooling ponds are widely used in industries and power plants to dissipate excess heat from water before releasing it into natural water bodies. This helps reduce thermal pollution, preventing sudden temperature changes that can harm aquatic ecosystems.<br\/>\n\n&bull; Cooling towers allow heat to escape through evaporation.<br\/>\n\n&bull; Cooling ponds hold heated water until it cools naturally.\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Q1. The &#8220;Four R&#8217;s&#8221; in waste management include all EXCEPT: View Answer Correct Option: 2. Replace Explanation: The Four R\u2019s are Refuse, Reduce, Reuse, and Recycle. &#8220;Replace&#8221; is not part of the standard four R\u2019s in sustainable waste management. Q2. What is the safe indoor noise level as recommended by the WHO? View Answer Correct [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19],"tags":[222,21,30,1052,31,221,1050,1053,20,1051],"class_list":["post-5435","post","type-post","status-publish","format-standard","hentry","category-environment","tag-bank-exams","tag-competitive-exams","tag-environment","tag-light-pollution","tag-mcq","tag-rrb-exams","tag-safe-indoor-noise-level","tag-soil-and-thermal-pollution","tag-ssc-cgl","tag-who"],"_links":{"self":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5435"}],"version-history":[{"count":8,"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5435\/revisions"}],"predecessor-version":[{"id":7210,"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5435\/revisions\/7210"}],"wp:attachment":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}