{"id":465,"date":"2023-06-12T12:31:43","date_gmt":"2023-06-12T07:01:43","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=465"},"modified":"2024-04-03T07:15:36","modified_gmt":"2024-04-03T01:45:36","slug":"q-which-of-the-following-statements-are-correct-about-the-deposits-of-methane-hydrate","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-which-of-the-following-statements-are-correct-about-the-deposits-of-methane-hydrate","title":{"rendered":"Q. Which of the following statements are correct about the deposits of \u2018methane hydrate\u2019?"},"content":{"rendered":"\n<ol class=\"wp-block-list\">\n<li>Global warming might trigger the release of methane gas from these deposits.<\/li>\n\n\n\n<li>Large deposits of \u2018methane hydrate\u2019 are found in Arctic Tundra and under the seafloor.<\/li>\n\n\n\n<li>Methane in atmosphere oxidizes to carbon dioxide after a decade or two.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Select the correct answer using the code given below.<\/p>\n\n\n\n<ul class=\"mcq wp-block-list\">\n<li>1 and 2 only<\/li>\n\n\n\n<li>2 and 3 only<\/li>\n\n\n\n<li>1 and 3 only<\/li>\n\n\n\n<li>1, 2 and 3<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer: (d) 1, 2 and 3<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Notes:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Large but poorly known&nbsp;<strong>amounts of methane are trapped in the sediments beneath the sea floor frozen<\/strong>&nbsp;into a&nbsp;<strong>form of water ice<\/strong>&nbsp;is called&nbsp;<strong>methane hydrate.<\/strong><\/li>\n\n\n\n<li>Methane hydrate is an \u201cice\u201d that only occurs naturally in&nbsp;<strong>subsurface deposits<\/strong>&nbsp;where&nbsp;<strong>temperature and pressure conditions are favourable<\/strong>&nbsp;for its formation.<\/li>\n\n\n\n<li><strong>Four earth environments<\/strong>\u00a0have the temperature and pressure conditions suitable for the formation and stability of methane hydrate. These are:\n<ol class=\"wp-block-list\">\n<li>sediment and sedimentary rock units below&nbsp;<strong>Arctic permafrost<\/strong>;<\/li>\n\n\n\n<li>sedimentary deposits along&nbsp;<strong>continental margins;<\/strong><\/li>\n\n\n\n<li>deep-water sediments of&nbsp;<strong>inland lakes and seas<\/strong>; and,<\/li>\n\n\n\n<li><strong>under Antarctic ice<\/strong>.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>At&nbsp;<strong>low temperatures<\/strong>&nbsp;the&nbsp;<strong>methane hydrates on the sea floor are stable<\/strong>, but if the water and the&nbsp;<strong>sea floor become warmer<\/strong>, then the&nbsp;<strong>hydrates can break down<\/strong>. The&nbsp;<strong>microorganisms present there then oxidises the resulting methane gas<\/strong>&nbsp;to form the greenhouse gas&nbsp;<strong>carbon dioxide (CO<sub>2<\/sub>)<\/strong>.<\/li>\n\n\n\n<li>Thus, owing to&nbsp;<strong>melting of ice<\/strong>,&nbsp;<strong>global warming might trigger<\/strong>&nbsp;the release of&nbsp;<strong>methane gas<\/strong>&nbsp;from these deposits hence having a significant impact in climate change.<\/li>\n\n\n\n<li>Methane is&nbsp;<strong>relatively short-lived in the atmosphere<\/strong>; a molecule of methane is&nbsp;<strong>oxidized to water and carbon dioxide<\/strong>&nbsp;within a decade or so, mainly by reaction with another trace gases.<\/li>\n\n\n\n<li>Thus, there is concerted effort to reduce methane emissions in order to reduce the greenhouse effect.&nbsp;<\/li>\n<\/ul>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-_f483a5-6e .kt-block-spacer{height:40px;}.wp-block-kadence-spacer.kt-block-spacer-_f483a5-6e .kt-divider{border-top-width:2px;border-top-color:#eee;width:100%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-_f483a5-6e\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Select the correct answer using the code given below. Answer: (d) 1, 2 and 3 Notes:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[36],"years":[54],"class_list":["post-465","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-environment","years-54"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":36,"label":"Environment"}],"years":[{"value":54,"label":"2019"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":36,"name":"Environment","slug":"environment","term_group":0,"term_taxonomy_id":36,"taxonomy":"post_tag","description":"","parent":0,"count":193,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=465"}],"version-history":[{"count":1,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/465\/revisions"}],"predecessor-version":[{"id":466,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/465\/revisions\/466"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=465"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}