{"id":2840,"date":"2026-04-22T19:39:29","date_gmt":"2026-04-22T14:09:29","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=2840"},"modified":"2026-04-22T19:39:31","modified_gmt":"2026-04-22T14:09:31","slug":"consider-the-following-statements-6","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/prelims\/consider-the-following-statements-6","title":{"rendered":"Consider the following statements:\u00a0"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Statement I:&nbsp;&nbsp;<\/strong>The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Statement II:&nbsp;<\/strong>Subtropical and temperate areas have less dry winds.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Which one of the following is correct in respect of the above statements?&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list mcq\">\n<li>Both Statement I and Statement II are correct and Statement II explains Statement I\u00a0\u00a0\u00a0<\/li>\n\n\n\n<li>Both Statement I and Statement II are correct but Statement II does not explain Statement I\u00a0<\/li>\n\n\n\n<li><strong>Statement I is correct but Statement II is not correct\u00a0\u00a0\u00a0<\/strong><\/li>\n\n\n\n<li>Statement I is not correct but Statement II is correct\u00a0\u00a0<\/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: (c) Statement I is correct but Statement II is not correct&nbsp;<\/strong><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The Earth\u2019s atmosphere\u00a0is not just composed of gases but also holds\u00a0<strong>various solid particles such\u00a0as dust, sea salt, pollen, etc.\u00a0<\/strong>These particles are known as\u00a0<strong>aerosols<\/strong>, and they play an essential role in weather phenomena such as cloud formation, precipitation, and visibility.<\/li>\n\n\n\n<li>The\u00a0<strong>amount of atmospheric dust is higher in subtropical and temperate regions than in equatorial and polar zones.<\/strong>\u00a0Subtropical areas contain\u00a0<strong>major arid deserts (like the Sahara), where dry winds, such as trade winds and westerlies<\/strong>, efficiently lift and transport significant dust. Subtropical deserts are major dust sources.<\/li>\n\n\n\n<li><strong>Key Factors Driving Higher Dust in Subtropical\/Temperate Regions:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Aridity &amp; Dry Winds:<\/strong>\u00a0Subtropical high-pressure belts, which produce sinking, dry air, dominate these areas, reducing precipitation and creating ideal conditions for dust suspension.<\/li>\n\n\n\n<li><strong>Low Precipitation\/Wet Deposition:<\/strong>\u00a0Unlike the equatorial region, which experiences high convectional rainfall that \u201cwashes\u201d (wet deposition) particles out of the air, these regions have less frequent rain to remove dust.<\/li>\n\n\n\n<li><strong>Land Exposure:<\/strong>\u00a0These regions feature extensive exposed soil, whereas polar regions are largely covered by ice, restricting dust generation.<\/li>\n\n\n\n<li><strong>Anthropogenic Activity:<\/strong>\u00a0Human activities, including agriculture (ploughing) and grazing, often increase dust production in temperate and subtropical environments.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Comparison with Other Regions:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Equatorial Regions:<\/strong>\u00a0Consistently high humidity and frequent rainfall keep the air relatively \u201cclean\u201d.<\/li>\n\n\n\n<li><strong>Polar Regions:<\/strong>\u00a0Very low temperatures and extensive snow\/ice cover prevent significant soil erosion and dust production.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Dry winds are prevalent in subtropical and temperate regions,\u00a0and these winds are precisely the reason dust concentration is higher in these areas<\/strong>. In the subtropics, for example, descending air from the\u00a0<strong>subtropical high-pressure belts\u00a0<\/strong>results in dry and stable conditions, which are associated with low humidity and dusty environments.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Statement I:&nbsp;&nbsp;The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions.&nbsp;&nbsp;&nbsp; Statement II:&nbsp;Subtropical and temperate areas have less dry winds.&nbsp;&nbsp;&nbsp; Which one of the following is correct in respect of the above statements?&nbsp;&nbsp;&nbsp; Answer: (c) Statement I is correct but Statement II is not&#8230;<\/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":[37],"years":[63],"class_list":["post-2840","post","type-post","status-publish","format-standard","hentry","category-prelims","category-upsc","tag-geography","years-63"],"acf":[],"taxonomy_info":{"category":[{"value":3,"label":"Prelims"},{"value":1,"label":"UPSC"}],"post_tag":[{"value":37,"label":"Geography"}],"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":37,"name":"Geography","slug":"geography","term_group":0,"term_taxonomy_id":37,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/2840","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=2840"}],"version-history":[{"count":0,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/2840\/revisions"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=2840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=2840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=2840"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=2840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}