{"id":86167,"date":"2025-06-01T03:39:18","date_gmt":"2025-06-01T03:39:18","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86167"},"modified":"2025-06-01T03:39:18","modified_gmt":"2025-06-01T03:39:18","slug":"what-is-the-approximate-percentage-of-carbon-in-the-earths-crust","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/","title":{"rendered":"What is the approximate percentage of carbon in the Earth’s crust ?"},"content":{"rendered":"

What is the approximate percentage of carbon in the Earth’s crust ?<\/p>\n

[amp_mcq option1=”0.045%” option2=”0.025%” option3=”0.015%” option4=”0.005%” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe Earth’s crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth’s crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer.
\n<\/section>\n
\n– The Earth’s crust is dominated by silicates.
\n– Carbon in the crust is mainly found in carbonates and organic matter.
\n– Its percentage by weight is relatively low compared to the major rock-forming elements.
\n<\/section>\n
\nThe lithosphere (crust and upper mantle) contains significantly more carbon than the atmosphere, oceans, and biosphere combined, primarily stored in carbonate rocks formed over geological time. The total amount of carbon on Earth is vast, but its distribution across different reservoirs is uneven.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

What is the approximate percentage of carbon in the Earth’s crust ? [amp_mcq option1=”0.045%” option2=”0.025%” option3=”0.015%” option4=”0.005%” correct=”option2″] This question was previously asked in UPSC CDS-2 – 2021 Download PDFAttempt Online The Earth’s crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, … <\/p>\n

Detailed SolutionWhat is the approximate percentage of carbon in the Earth’s crust ?<\/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":[1110,1150,1106],"class_list":["post-86167","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1110","tag-the-earth","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nWhat is the approximate percentage of carbon in the Earth's crust ?<\/title>\n<meta name=\"description\" content=\"The Earth's crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth's crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer. - The Earth's crust is dominated by silicates. - Carbon in the crust is mainly found in carbonates and organic matter. - Its percentage by weight is relatively low compared to the major rock-forming elements.\" \/>\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\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the approximate percentage of carbon in the Earth's crust ?\" \/>\n<meta property=\"og:description\" content=\"The Earth's crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth's crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer. - The Earth's crust is dominated by silicates. - Carbon in the crust is mainly found in carbonates and organic matter. - Its percentage by weight is relatively low compared to the major rock-forming elements.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:39:18+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":"What is the approximate percentage of carbon in the Earth's crust ?","description":"The Earth's crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth's crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer. - The Earth's crust is dominated by silicates. - Carbon in the crust is mainly found in carbonates and organic matter. - Its percentage by weight is relatively low compared to the major rock-forming elements.","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\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/","og_locale":"en_US","og_type":"article","og_title":"What is the approximate percentage of carbon in the Earth's crust ?","og_description":"The Earth's crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth's crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer. - The Earth's crust is dominated by silicates. - Carbon in the crust is mainly found in carbonates and organic matter. - Its percentage by weight is relatively low compared to the major rock-forming elements.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:39:18+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\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/","url":"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/","name":"What is the approximate percentage of carbon in the Earth's crust ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:39:18+00:00","dateModified":"2025-06-01T03:39:18+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The Earth's crust is primarily composed of silicate minerals. While carbon is abundant on Earth as a whole (present in the atmosphere, oceans, biosphere, and mantle), its percentage in the *crust* specifically (excluding the organic component and sedimentary rocks like carbonates which are often considered part of the crust but distinct in geological abundance statistics) is relatively low compared to elements like oxygen, silicon, aluminium, iron, etc. Carbon exists in the crust mainly in carbonate rocks (limestone, dolomite), coal, petroleum, and organic matter. Estimates for the abundance of carbon in the Earth's crust typically fall in the range of 0.03% to 0.05% by weight. Looking at the options provided, 0.045% falls within this commonly cited range, making it the most likely correct answer. - The Earth's crust is dominated by silicates. - Carbon in the crust is mainly found in carbonates and organic matter. - Its percentage by weight is relatively low compared to the major rock-forming elements.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/what-is-the-approximate-percentage-of-carbon-in-the-earths-crust\/#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":"What is the approximate percentage of carbon in the Earth’s crust ?"}]},{"@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\/86167","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=86167"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/86167\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=86167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=86167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=86167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}