{"id":86540,"date":"2025-06-01T03:49:55","date_gmt":"2025-06-01T03:49:55","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86540"},"modified":"2025-06-01T03:49:55","modified_gmt":"2025-06-01T03:49:55","slug":"ozone-hole-is-a-region-over","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/ozone-hole-is-a-region-over\/","title":{"rendered":"Ozone hole is a region over :"},"content":{"rendered":"

Ozone hole is a region over :<\/p>\n

[amp_mcq option1=”the Antarctic caused mainly by CFC gases.” option2=”the Antarctic caused mainly by carbon dioxide gas.” option3=”the Arctic caused mainly by CFC gases.” option4=”the Arctic caused mainly by carbon dioxide gas.” correct=”option1″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CDS-2 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
The ozone hole is a region over the Antarctic caused mainly by CFC gases.<\/section>\n
The “ozone hole” refers to the dramatic thinning of the stratospheric ozone layer that occurs annually over Antarctica during the Southern Hemisphere spring (August-October). This severe depletion is primarily driven by catalytic reactions involving chlorine and bromine atoms released from synthetic ozone-depleting substances (ODS) like chlorofluorocarbons (CFCs) and halons, which accumulate in the stratosphere and are activated under the extremely cold conditions and sunlight present in the Antarctic polar vortex.<\/section>\n
While some ozone depletion also occurs over the Arctic, it is generally less severe and variable due to different meteorological conditions. Carbon dioxide (CO\u2082) is a greenhouse gas that contributes to global warming but is not a direct cause of stratospheric ozone depletion; in fact, increasing greenhouse gases can even cool the stratosphere, potentially influencing ozone chemistry in complex ways.<\/section>\n","protected":false},"excerpt":{"rendered":"

Ozone hole is a region over : [amp_mcq option1=”the Antarctic caused mainly by CFC gases.” option2=”the Antarctic caused mainly by carbon dioxide gas.” option3=”the Arctic caused mainly by CFC gases.” option4=”the Arctic caused mainly by carbon dioxide gas.” correct=”option1″] This question was previously asked in UPSC CDS-2 – 2024 Download PDFAttempt Online The ozone hole … <\/p>\n

Detailed SolutionOzone hole is a region over :<\/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":[1103,1136,1318],"class_list":["post-86540","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1103","tag-environment-and-ecology","tag-ozone-layer","no-featured-image-padding"],"yoast_head":"\nOzone hole is a region over :<\/title>\n<meta name=\"description\" content=\"The ozone hole is a region over the Antarctic caused mainly by CFC gases. The "ozone hole" refers to the dramatic thinning of the stratospheric ozone layer that occurs annually over Antarctica during the Southern Hemisphere spring (August-October). This severe depletion is primarily driven by catalytic reactions involving chlorine and bromine atoms released from synthetic ozone-depleting substances (ODS) like chlorofluorocarbons (CFCs) and halons, which accumulate in the stratosphere and are activated under the extremely cold conditions and sunlight present in the Antarctic polar vortex.\" \/>\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\/ozone-hole-is-a-region-over\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ozone hole is a region over :\" \/>\n<meta property=\"og:description\" content=\"The ozone hole is a region over the Antarctic caused mainly by CFC gases. The "ozone hole" refers to the dramatic thinning of the stratospheric ozone layer that occurs annually over Antarctica during the Southern Hemisphere spring (August-October). This severe depletion is primarily driven by catalytic reactions involving chlorine and bromine atoms released from synthetic ozone-depleting substances (ODS) like chlorofluorocarbons (CFCs) and halons, which accumulate in the stratosphere and are activated under the extremely cold conditions and sunlight present in the Antarctic polar vortex.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/ozone-hole-is-a-region-over\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:49:55+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":"Ozone hole is a region over :","description":"The ozone hole is a region over the Antarctic caused mainly by CFC gases. 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The \"ozone hole\" refers to the dramatic thinning of the stratospheric ozone layer that occurs annually over Antarctica during the Southern Hemisphere spring (August-October). 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The \"ozone hole\" refers to the dramatic thinning of the stratospheric ozone layer that occurs annually over Antarctica during the Southern Hemisphere spring (August-October). 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