{"id":2828,"date":"2026-04-22T19:22:20","date_gmt":"2026-04-22T13:52:20","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=2828"},"modified":"2026-04-22T19:23:33","modified_gmt":"2026-04-22T13:53:33","slug":"with-reference-to-direct-air-capture-dac-which-of-the-following-statements-is-are-correct","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/prelims\/with-reference-to-direct-air-capture-dac-which-of-the-following-statements-is-are-correct","title":{"rendered":"With reference to \u2018Direct Air Capture\u2019 (DAC), which of the following statements is\/are correct?"},"content":{"rendered":"\n
I. It can be used as a way of carbon sequestration. <\/p>\n\n\n\n
II. It can be a valuable approach for plastic production and in food processing. <\/p>\n\n\n\n
III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel. <\/p>\n\n\n\n
Select the correct answer using the code given below. <\/p>\n\n\n\n
\n
I and II only <\/li>\n\n\n\n
III only <\/li>\n\n\n\n
I, II and III <\/strong><\/li>\n\n\n\n
None of the above statements is correct <\/li>\n<\/ul>\n\n\n\n
\n
Answer: (c) I, II and III<\/strong><\/p>\n<\/blockquote>\n\n\n\n
\n
Direct air capture (DAC) is a method that can be used for carbon sequestration, also known as direct air carbon capture and sequestration (DACCS).<\/strong> DACCS involves extracting carbon dioxide (CO2) directly from the atmosphere using chemical or physical processes, followed by the long-term storage of that captured CO2, effectively removing it from the atmosphere.<\/li>\n\n\n\n
Direct air capture (DAC) can be a valuable approach for certain aspects of plastic production and food processing by utilizing captured CO2<\/strong>. DAC extracts CO2 from the atmosphere, which can then be used as a feedstock for producing some types of plastics and in food production processes.<\/li>\n\n\n\n
Direct air capture (DAC) technology can be used in aviation to create synthetic low-carbon fuels<\/strong>. DAC extracts carbon dioxide (CO2) from the atmosphere. This captured CO2 can then be combined with hydrogen, which can be produced through renewable energy sources, to create synthetic fuels like e-fuels<\/li>\n<\/ul>\n\n\n\n
Direct Air Capture (DAC):<\/h5>\n\n\n\n
\n
Direct Air Capture (DAC) technologies remove carbon dioxide (CO2<\/sub>) directly from the atmosphere using liquid solvents or solid sorbents<\/strong>, providing a crucial tool for mitigating climate change.\n
\n
Captured carbon dioxide (CO2<\/sub>)<\/strong> is permanently stored underground or used in products<\/strong>, with over 130 facilities planned to reach net-zero goals.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
Process: <\/strong>Fans draw in ambient air, passing it over chemical agents that selectively bind with CO2<\/sub><\/strong>. Heat is then applied to release the CO2<\/sub><\/strong> and regenerate the chemical.<\/li>\n\n\n\n
Techniques:<\/strong> Two main approaches exist: liquid solvent-based systems (using high heat) and solid sorbent-based systems <\/strong>(using lower heat and vacuum).<\/li>\n\n\n\n
Applications:<\/strong> Captured carbon can be sequestered in geological formations (direct air carbon capture and storage \u2013 DACCS) or utilized in synthetic fuels, materials, or carbonated beverages<\/strong>.<\/li>\n\n\n\n
Advantages:<\/strong> Unlike point-source capture, DAC can be located anywhere<\/strong>, requires minimal land compared to nature-based solutions, and addresses \u201clegacy\u201d emissions.<\/li>\n\n\n\n
Challenges:<\/strong> The process is energy-intensive and currently costly,<\/strong> with estimates ranging from $600\u2013$1,000 per tonne, though costs are expected to decrease by the 2030s.<\/li>\n<\/ul>\n\n\n
\nDirect Air Capture<\/em><\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"
I. It can be used as a way of carbon sequestration. II. It can be a valuable approach for plastic production and in food processing. III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel. Select the correct answer using the code given below. Answer: (c)…<\/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":[3,1],"tags":[36],"years":[63],"class_list":["post-2828","post","type-post","status-publish","format-standard","hentry","category-prelims","category-upsc","tag-environment","years-63"],"acf":[],"taxonomy_info":{"category":[{"value":3,"label":"Prelims"},{"value":1,"label":"UPSC"}],"post_tag":[{"value":36,"label":"Environment"}],"years":[{"value":63,"label":"2025"}]},"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":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},{"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}],"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\/2828","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=2828"}],"version-history":[{"count":0,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/2828\/revisions"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=2828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=2828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=2828"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=2828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"Direct](\"https:\/\/lotusarise.com\/wp-content\/uploads\/2026\/04\/Direct-Air-Capture-1024x677.png\" "\\"\\"")