{"id":89931,"date":"2025-06-01T10:17:28","date_gmt":"2025-06-01T10:17:28","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89931"},"modified":"2025-06-01T10:17:28","modified_gmt":"2025-06-01T10:17:28","slug":"it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/","title":{"rendered":"It is reported that there is an ongoing decrease in the pH value of oc"},"content":{"rendered":"

It is reported that there is an ongoing decrease in the pH value of ocean water because of global warming. It happens due to :<\/p>\n

[amp_mcq option1=”larger uptake of CO\u2082 by ocean water” option2=”lesser uptake of CO\u2082 by ocean water” option3=”larger uptake of atmospheric nitrogen by ocean water” option4=”lesser uptake of atmospheric nitrogen by ocean water” correct=”option1″]<\/p>\n

\n
\n
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
\nThe correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming.
\n<\/section>\n
\nGlobal warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.
\n<\/section>\n
\nOcean acidification has significant impacts on marine ecosystems, particularly on organisms with calcium carbonate shells or skeletons, such as corals, shellfish, and plankton. Lower pH makes it harder for these organisms to build and maintain their structures. Atmospheric nitrogen uptake does occur in the ocean (nitrogen fixation), but it does not directly cause large-scale ocean acidification; it is related to nutrient cycles and marine productivity.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

It is reported that there is an ongoing decrease in the pH value of ocean water because of global warming. It happens due to : [amp_mcq option1=”larger uptake of CO\u2082 by ocean water” option2=”lesser uptake of CO\u2082 by ocean water” option3=”larger uptake of atmospheric nitrogen by ocean water” option4=”lesser uptake of atmospheric nitrogen by ocean … <\/p>\n

Detailed SolutionIt is reported that there is an ongoing decrease in the pH value of oc<\/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-89931","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":"\nIt is reported that there is an ongoing decrease in the pH value of oc<\/title>\n<meta name=\"description\" content=\"The correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming. Global warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.\" \/>\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\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"It is reported that there is an ongoing decrease in the pH value of oc\" \/>\n<meta property=\"og:description\" content=\"The correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming. Global warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:17:28+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":"It is reported that there is an ongoing decrease in the pH value of oc","description":"The correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming. Global warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.","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\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/","og_locale":"en_US","og_type":"article","og_title":"It is reported that there is an ongoing decrease in the pH value of oc","og_description":"The correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming. Global warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:17:28+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\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/","url":"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/","name":"It is reported that there is an ongoing decrease in the pH value of oc","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:17:28+00:00","dateModified":"2025-06-01T10:17:28+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is A. The decrease in ocean pH (ocean acidification) is primarily caused by the ocean absorbing increasing amounts of atmospheric carbon dioxide (CO\u2082), which is linked to global warming. Global warming is largely caused by increased atmospheric concentrations of greenhouse gases, particularly CO\u2082, resulting from human activities. The ocean acts as a significant sink for atmospheric CO\u2082, absorbing about a quarter of the anthropogenic emissions. When CO\u2082 dissolves in seawater, it reacts with water to form carbonic acid (H\u2082CO\u2083). Carbonic acid then dissociates, releasing hydrogen ions (H\u207a), which lowers the pH of the water, making it more acidic. Increased CO\u2082 in the atmosphere due to factors causing global warming leads to increased CO\u2082 uptake by the ocean, driving this acidification process.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/it-is-reported-that-there-is-an-ongoing-decrease-in-the-ph-value-of-oc\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CAPF","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-capf\/"},{"@type":"ListItem","position":3,"name":"It is reported that there is an ongoing decrease in the pH value of oc"}]},{"@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\/89931","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=89931"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/89931\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=89931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=89931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=89931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}