{"id":86404,"date":"2025-06-01T03:46:15","date_gmt":"2025-06-01T03:46:15","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86404"},"modified":"2025-06-01T03:46:15","modified_gmt":"2025-06-01T03:46:15","slug":"how-much-percentage-of-carbon-dioxide-is-present-in-the-atmosphere-of","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/how-much-percentage-of-carbon-dioxide-is-present-in-the-atmosphere-of\/","title":{"rendered":"How much percentage of carbon dioxide is present in the atmosphere of"},"content":{"rendered":"

How much percentage of carbon dioxide is present in the atmosphere of Venus and Mars ?<\/p>\n

[amp_mcq option1=”45 – 47%” option2=”52 – 55%” option3=”74 – 77%” option4=”95 – 97%” correct=”option4″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CDS-2 – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe atmospheres of both Venus and Mars are predominantly composed of carbon dioxide. Venus’s atmosphere is about 96.5% CO2, and Mars’s atmosphere is about 95% CO2. Option D, 95 – 97%, is the range that accurately represents the high percentage of carbon dioxide in the atmospheres of both planets.
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\nThe thick CO2 atmosphere of Venus creates an extreme greenhouse effect, resulting in very high surface temperatures. The thin CO2 atmosphere of Mars contributes to its cold and arid conditions.
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\nIn contrast, Earth’s atmosphere is composed primarily of nitrogen (about 78%) and oxygen (about 21%), with carbon dioxide being only a trace gas (around 0.04%), although its concentration is increasing due to human activities. The composition of planetary atmospheres is a key factor determining their climate and potential for life.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

How much percentage of carbon dioxide is present in the atmosphere of Venus and Mars ? [amp_mcq option1=”45 – 47%” option2=”52 – 55%” option3=”74 – 77%” option4=”95 – 97%” correct=”option4″] This question was previously asked in UPSC CDS-2 – 2023 Download PDFAttempt Online The atmospheres of both Venus and Mars are predominantly composed of carbon … <\/p>\n

Detailed SolutionHow much percentage of carbon dioxide is present in the atmosphere of<\/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":[1105,1198],"class_list":["post-86404","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1105","tag-space-technology","no-featured-image-padding"],"yoast_head":"\nHow much percentage of carbon dioxide is present in the atmosphere of<\/title>\n<meta name=\"description\" content=\"The atmospheres of both Venus and Mars are predominantly composed of carbon dioxide. Venus's atmosphere is about 96.5% CO2, and Mars's atmosphere is about 95% CO2. Option D, 95 - 97%, is the range that accurately represents the high percentage of carbon dioxide in the atmospheres of both planets. The thick CO2 atmosphere of Venus creates an extreme greenhouse effect, resulting in very high surface temperatures. The thin CO2 atmosphere of Mars contributes to its cold and arid conditions.\" \/>\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\/how-much-percentage-of-carbon-dioxide-is-present-in-the-atmosphere-of\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How much percentage of carbon dioxide is present in the atmosphere of\" \/>\n<meta property=\"og:description\" content=\"The atmospheres of both Venus and Mars are predominantly composed of carbon dioxide. Venus's atmosphere is about 96.5% CO2, and Mars's atmosphere is about 95% CO2. Option D, 95 - 97%, is the range that accurately represents the high percentage of carbon dioxide in the atmospheres of both planets. The thick CO2 atmosphere of Venus creates an extreme greenhouse effect, resulting in very high surface temperatures. The thin CO2 atmosphere of Mars contributes to its cold and arid conditions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/how-much-percentage-of-carbon-dioxide-is-present-in-the-atmosphere-of\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:46:15+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":"How much percentage of carbon dioxide is present in the atmosphere of","description":"The atmospheres of both Venus and Mars are predominantly composed of carbon dioxide. 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