{"id":89937,"date":"2025-06-01T10:17:34","date_gmt":"2025-06-01T10:17:34","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89937"},"modified":"2025-06-01T10:17:34","modified_gmt":"2025-06-01T10:17:34","slug":"which-one-among-the-following-substances-is-not-a-green-house-gas","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-substances-is-not-a-green-house-gas\/","title":{"rendered":"Which one among the following substances is NOT a ‘green house’ gas ?"},"content":{"rendered":"

Which one among the following substances is NOT a ‘green house’ gas ?<\/p>\n

[amp_mcq option1=”Water vapour” option2=”Chlorofluorocarbon” option3=”Methane” option4=”Nitrogen” correct=”option4″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CAPF – 2015<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
Nitrogen (N\u2082) is the most abundant gas in the Earth’s atmosphere, making up about 78%. However, it is not considered a greenhouse gas because its symmetrical diatomic molecule does not absorb and re-emit infrared radiation effectively, unlike gases with three or more atoms (like water vapour, methane) or asymmetrical diatomic molecules (like carbon monoxide) or complex molecules like CFCs.
\n<\/section>\n
Greenhouse gases absorb and emit infrared radiation, trapping heat in the atmosphere. Major greenhouse gases include carbon dioxide (CO\u2082), methane (CH\u2084), nitrous oxide (N\u2082O), water vapour (H\u2082O), and fluorinated gases (like CFCs, HFCs, PFCs, SF\u2086).
\n<\/section>\n
While nitrogen does not directly contribute to the greenhouse effect, nitrogen oxides (like N\u2082O, which is a powerful greenhouse gas, and NO\u2082) are significant air pollutants and can be formed from nitrogen and oxygen under high temperatures. However, the question specifically asks about ‘Nitrogen’ (referring to N\u2082).
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one among the following substances is NOT a ‘green house’ gas ? [amp_mcq option1=”Water vapour” option2=”Chlorofluorocarbon” option3=”Methane” option4=”Nitrogen” correct=”option4″] This question was previously asked in UPSC CAPF – 2015 Download PDFAttempt Online Nitrogen (N\u2082) is the most abundant gas in the Earth’s atmosphere, making up about 78%. However, it is not considered a greenhouse … <\/p>\n

Detailed SolutionWhich one among the following substances is NOT a ‘green house’ gas ?<\/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":[1085],"tags":[1443,1136,1259],"class_list":["post-89937","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1443","tag-environment-and-ecology","tag-greenhouse-effect-and-climate-change","no-featured-image-padding"],"yoast_head":"\nWhich one among the following substances is NOT a 'green house' gas ?<\/title>\n<meta name=\"description\" content=\"Nitrogen (N\u2082) is the most abundant gas in the Earth's atmosphere, making up about 78%. However, it is not considered a greenhouse gas because its symmetrical diatomic molecule does not absorb and re-emit infrared radiation effectively, unlike gases with three or more atoms (like water vapour, methane) or asymmetrical diatomic molecules (like carbon monoxide) or complex molecules like CFCs. Greenhouse gases absorb and emit infrared radiation, trapping heat in the atmosphere. Major greenhouse gases include carbon dioxide (CO\u2082), methane (CH\u2084), nitrous oxide (N\u2082O), water vapour (H\u2082O), and fluorinated gases (like CFCs, HFCs, PFCs, SF\u2086).\" \/>\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-one-among-the-following-substances-is-not-a-green-house-gas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one among the following substances is NOT a 'green house' gas ?\" \/>\n<meta property=\"og:description\" content=\"Nitrogen (N\u2082) is the most abundant gas in the Earth's atmosphere, making up about 78%. However, it is not considered a greenhouse gas because its symmetrical diatomic molecule does not absorb and re-emit infrared radiation effectively, unlike gases with three or more atoms (like water vapour, methane) or asymmetrical diatomic molecules (like carbon monoxide) or complex molecules like CFCs. Greenhouse gases absorb and emit infrared radiation, trapping heat in the atmosphere. Major greenhouse gases include carbon dioxide (CO\u2082), methane (CH\u2084), nitrous oxide (N\u2082O), water vapour (H\u2082O), and fluorinated gases (like CFCs, HFCs, PFCs, SF\u2086).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-substances-is-not-a-green-house-gas\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:17:34+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 one among the following substances is NOT a 'green house' gas ?","description":"Nitrogen (N\u2082) is the most abundant gas in the Earth's atmosphere, making up about 78%. 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Major greenhouse gases include carbon dioxide (CO\u2082), methane (CH\u2084), nitrous oxide (N\u2082O), water vapour (H\u2082O), and fluorinated gases (like CFCs, HFCs, PFCs, SF\u2086).","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-one-among-the-following-substances-is-not-a-green-house-gas\/","og_locale":"en_US","og_type":"article","og_title":"Which one among the following substances is NOT a 'green house' gas ?","og_description":"Nitrogen (N\u2082) is the most abundant gas in the Earth's atmosphere, making up about 78%. 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