{"id":5328,"date":"2025-11-21T16:18:04","date_gmt":"2025-11-21T16:18:04","guid":{"rendered":"https:\/\/mehnatt.com\/?p=5328"},"modified":"2025-11-21T16:18:04","modified_gmt":"2025-11-21T16:18:04","slug":"mcqs-based-on-environment-27","status":"publish","type":"post","link":"https:\/\/mehnatt.com\/?p=5328","title":{"rendered":"MCQs Based On Environment &#8211; (27)"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Q1. Which gas is primarily responsible for the depletion of the ozone layer?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Sulphur dioxide<\/li>\n\n\n\n<li style=\"font-size:17px\">Carbon dioxide<\/li>\n\n\n\n<li style=\"font-size:17px\">Nitrogen<\/li>\n\n\n\n<li style=\"font-size:17px\">Chlorofluorocarbons (CFCs)<\/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> 4. Chlorofluorocarbons (CFCs) <br\/>\n<strong>Explanation:<\/strong> CFCs are man-made compounds released mainly from refrigeration and air-conditioning systems. When they reach the stratosphere, they break down ozone (O\u2083) molecules, leading to ozone layer depletion.\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. Which of the following is a major pollutant from vehicles?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">PAN<\/li>\n\n\n\n<li style=\"font-size:17px\">Carbon monoxide (CO)<\/li>\n\n\n\n<li style=\"font-size:17px\">CFCs<\/li>\n\n\n\n<li style=\"font-size:17px\">Radon<\/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. Carbon monoxide (CO) <br\/>\n<strong>Explanation:<\/strong> Carbon monoxide is a colorless, odorless gas produced by the incomplete combustion of fuel in vehicle engines. It is highly toxic and interferes with the body&#8217;s ability to transport oxygen.\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. Photochemical smog is formed due to reaction of sunlight with which combination?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Water vapor and oxygen<\/li>\n\n\n\n<li style=\"font-size:17px\">Nitrogen oxides and volatile organic compounds<\/li>\n\n\n\n<li style=\"font-size:17px\">Carbon dioxide and dust<\/li>\n\n\n\n<li style=\"font-size:17px\">Lead and sulphur dioxide<\/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. Nitrogen oxides and volatile organic compounds <br\/>\n<strong>Explanation:<\/strong> Photochemical smog is a secondary pollutant formed when sunlight reacts with NO\u2093 and VOCs released from vehicle exhausts and solvents. One of the main components of this smog is ground-level ozone.\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 pollutants is most common in rural indoor air pollution?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Formaldehyde<\/li>\n\n\n\n<li style=\"font-size:17px\">Radon<\/li>\n\n\n\n<li style=\"font-size:17px\">Smoke from biomass burning<\/li>\n\n\n\n<li style=\"font-size:17px\">Asbestos<\/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. Smoke from biomass burning <br\/>\n<strong>Explanation:<\/strong> In rural areas, burning of wood, dung, and crop residue in poorly ventilated kitchens leads to indoor air pollution. This smoke contains harmful pollutants like particulate matter, carbon monoxide, and polycyclic aromatic hydrocarbons.\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 classification of pollutants includes substances that cannot be broken down by natural processes?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li style=\"font-size:17px\">Biodegradable<\/li>\n\n\n\n<li style=\"font-size:17px\">Secondary<\/li>\n\n\n\n<li style=\"font-size:17px\">Non-biodegradable<\/li>\n\n\n\n<li style=\"font-size:17px\">Quantitative<\/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. Non-biodegradable <br\/>\n<strong>Explanation:<\/strong> Non-biodegradable pollutants are substances like plastics, heavy metals, and radioactive waste that do not decompose naturally and can persist in the environment for hundreds of years, causing long-term damage.\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Q1. Which gas is primarily responsible for the depletion of the ozone layer? View Answer Correct Option: 4. Chlorofluorocarbons (CFCs) Explanation: CFCs are man-made compounds released mainly from refrigeration and air-conditioning systems. When they reach the stratosphere, they break down ozone (O\u2083) molecules, leading to ozone layer depletion. Q2. Which of the following is a [&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":[16,110,111,21,31,109,112,15,20,14],"class_list":["post-5328","post","type-post","status-publish","format-standard","hentry","category-environment","tag-bank","tag-carbon-dioxide","tag-carbon-monoxide","tag-competitive-exams","tag-mcq","tag-ozone-layer","tag-photochemical-smog","tag-rrb","tag-ssc-cgl","tag-ssc-competitive-exams"],"_links":{"self":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5328","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=5328"}],"version-history":[{"count":6,"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5328\/revisions"}],"predecessor-version":[{"id":5334,"href":"https:\/\/mehnatt.com\/index.php?rest_route=\/wp\/v2\/posts\/5328\/revisions\/5334"}],"wp:attachment":[{"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mehnatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}