Correct Answer: D. intense sunlight at the solar equator<\/strong><\/p>\n\n\n\n The circulation of air in a Hadley cell<\/strong> is primarily driven by intense sunlight at the solar equator<\/strong>. The equator receives more direct solar radiation<\/strong> throughout the year compared to other latitudes. This intense sunlight heats the Earth’s surface<\/strong>, causing the air above it to become warm and less dense<\/strong>.<\/p>\n\n\n\n As the warm air rises<\/strong> near the equator, it creates a low-pressure zone<\/strong>. As the air rises, it cools<\/strong> and the moisture it contains begins to condense<\/strong>, forming clouds and heavy rainfall<\/strong> typical of equatorial regions. This release of latent heat<\/strong> during condensation also adds more energy to the rising air, but it is not the initial<\/em> or main<\/em> driver of the Hadley cell.<\/p>\n\n\n\n After the air rises high into the atmosphere, it begins to move poleward<\/strong> (towards 30 degrees north and south) due to the Earth’s rotation and the conservation of momentum. As it moves away from the equator, it cools down<\/strong> and becomes denser. Around 30 degrees latitude<\/strong>, the cooled air sinks<\/strong>, creating high-pressure zones<\/strong> and contributing to the dry desert conditions<\/strong> commonly found in those regions (like the Sahara and Arabian deserts).<\/p>\n\n\n\n The sinking air<\/strong> then travels back toward the equator at the surface, completing the Hadley cell circulation loop<\/strong>. These surface winds are deflected by the Coriolis effect<\/strong>, forming the trade winds<\/strong>.<\/p>\n\n\n\n Other choices such as “sinking of cold polar air” and “fluctuation of air patterns between latitudes of 30 and 60 degrees” are related to other atmospheric cells like the Ferrel<\/strong> or Polar cells<\/strong>, not the Hadley cell.<\/p>\n\n\n\n Therefore, the primary factor<\/strong> initiating and driving the Hadley cell<\/strong> circulation is intense solar heating at the equator<\/strong>.<\/p>\n\n\n\n Ultimately; what factor drives the circulation of air in a Hadley cell? sinking of cold polar air B. dry desert conditions around 309 N & 302 $ C latent heat release when liquid water is converted to water vapor D. intense sunlight at the solar equator E. fluctuation of air patterns between latitudes of 30″ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-252688","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=252688"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252688\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=252688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=252688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=252688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
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<\/figure>\n","protected":false},"excerpt":{"rendered":"