{"id":85603,"date":"2025-06-01T03:22:31","date_gmt":"2025-06-01T03:22:31","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85603"},"modified":"2025-06-01T03:22:31","modified_gmt":"2025-06-01T03:22:31","slug":"which-of-the-following-statements-concerning-atmosphere-of-the-earth-a","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/","title":{"rendered":"Which of the following statements concerning atmosphere of the Earth a"},"content":{"rendered":"<p>Which of the following statements concerning atmosphere of the Earth are correct?<\/p>\n<ul>\n<li>1. In stratosphere, temperature increases with altitude.<\/li>\n<li>2. In mesosphere, temperature decreases with altitude.<\/li>\n<li>3. The lowest temperature of the atmosphere is recorded in the upper part of mesosphere.<\/li>\n<li>4. Tropopause is an isothermal zone.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below.<\/p>\n<p>[amp_mcq option1=&#8221;1 and 2 only&#8221; option2=&#8221;1, 2 and 3 only&#8221; option3=&#8221;3 and 4 only&#8221; option4=&#8221;1, 2, 3 and 4&#8243; correct=&#8221;option4&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC CDS-2 &#8211; 2016<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-2-2016.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-2-2016\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Statements 1, 2, and 3 regarding the Earth&#8217;s atmosphere are correct.<\/section>\n<section id=\"pyq-key-points\">Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth&#8217;s atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it&#8217;s not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.<\/section>\n<section id=\"pyq-additional-information\">The atmosphere&#8217;s temperature profile varies with altitude through its different layers: troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer exhibits distinct temperature gradients driven by different physical processes.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following statements concerning atmosphere of the Earth are correct? 1. In stratosphere, temperature increases with altitude. 2. In mesosphere, temperature decreases with altitude. 3. The lowest temperature of the atmosphere is recorded in the upper part of mesosphere. 4. Tropopause is an isothermal zone. Select the correct answer using the code given &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following statements concerning atmosphere of the Earth a\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/#more-85603\">Detailed Solution<span class=\"screen-reader-text\">Which of the following statements concerning atmosphere of the Earth a<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1088],"tags":[1098,1107,1106],"class_list":["post-85603","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1098","tag-the-atmosphere","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which of the following statements concerning atmosphere of the Earth a<\/title>\n<meta name=\"description\" content=\"Statements 1, 2, and 3 regarding the Earth&#039;s atmosphere are correct. Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth&#039;s atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it&#039;s not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following statements concerning atmosphere of the Earth a\" \/>\n<meta property=\"og:description\" content=\"Statements 1, 2, and 3 regarding the Earth&#039;s atmosphere are correct. Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth&#039;s atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it&#039;s not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:22:31+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which of the following statements concerning atmosphere of the Earth a","description":"Statements 1, 2, and 3 regarding the Earth's atmosphere are correct. Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth's atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it's not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements concerning atmosphere of the Earth a","og_description":"Statements 1, 2, and 3 regarding the Earth's atmosphere are correct. Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth's atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it's not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:22:31+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/","name":"Which of the following statements concerning atmosphere of the Earth a","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:22:31+00:00","dateModified":"2025-06-01T03:22:31+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statements 1, 2, and 3 regarding the Earth's atmosphere are correct. Statement 1 is correct: In the stratosphere, temperature increases with altitude due to the absorption of ultraviolet radiation by the ozone layer. Statement 2 is correct: In the mesosphere, temperature decreases sharply with altitude, reaching very low temperatures at its upper boundary. Statement 3 is correct: The mesopause, located at the top of the mesosphere, is the coldest region of the Earth's atmosphere. Statement 4 is generally considered incorrect: The tropopause is the boundary zone between the troposphere and stratosphere where the temperature lapse rate changes significantly; it's not a thick isothermal layer, although temperature changes minimally with height within the boundary itself compared to the layers above and below.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-concerning-atmosphere-of-the-earth-a\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-2\/"},{"@type":"ListItem","position":3,"name":"Which of the following statements concerning atmosphere of the Earth a"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/85603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=85603"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/85603\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=85603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=85603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=85603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}