{"id":85535,"date":"2025-06-01T03:20:03","date_gmt":"2025-06-01T03:20:03","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85535"},"modified":"2025-06-01T03:20:03","modified_gmt":"2025-06-01T03:20:03","slug":"which-greenhouse-gas-has-maximum-average-residence-time-in-the","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-greenhouse-gas-has-maximum-average-residence-time-in-the\/","title":{"rendered":"Which greenhouse gas has maximum average residence time in the"},"content":{"rendered":"

Which greenhouse gas has maximum average residence time in the atmosphere?<\/p>\n

[amp_mcq option1=”CFC” option2=”CH\u2084” option3=”N\u2082O” option4=”Water vapour” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is CFC (Chlorofluorocarbon).
\n<\/section>\n
\nGreenhouse gases have varying residence times in the atmosphere. Among the options provided, Chlorofluorocarbons (CFCs) have the longest average residence times, typically ranging from decades to several centuries.
\n<\/section>\n
\nWater vapour has a very short residence time (days). Methane (CH\u2084) has a residence time of about 12 years. Nitrous oxide (N\u2082O) has a residence time of about 121 years. CFCs, though also potent greenhouse gases, were primarily known for their role in ozone depletion and their long atmospheric lifetimes make them persist for a very long time, contributing to warming over extended periods.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which greenhouse gas has maximum average residence time in the atmosphere? [amp_mcq option1=”CFC” option2=”CH\u2084” option3=”N\u2082O” option4=”Water vapour” correct=”option1″] This question was previously asked in UPSC CDS-1 – 2024 Download PDFAttempt Online The correct answer is CFC (Chlorofluorocarbon). Greenhouse gases have varying residence times in the atmosphere. Among the options provided, Chlorofluorocarbons (CFCs) have the longest … <\/p>\n

Detailed SolutionWhich greenhouse gas has maximum average residence time in the<\/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":[1087],"tags":[1103,1136,1259],"class_list":["post-85535","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1103","tag-environment-and-ecology","tag-greenhouse-effect-and-climate-change","no-featured-image-padding"],"yoast_head":"\nWhich greenhouse gas has maximum average residence time in the<\/title>\n<meta name=\"description\" content=\"The correct answer is CFC (Chlorofluorocarbon). Greenhouse gases have varying residence times in the atmosphere. 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