{"id":210318,"date":"2025-04-30T07:45:20","date_gmt":"2025-04-30T07:45:20","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=210318"},"modified":"2025-04-30T07:45:23","modified_gmt":"2025-04-30T07:45:23","slug":"what-is-the-approximate-height-of-the-tropopause","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/30\/what-is-the-approximate-height-of-the-tropopause\/","title":{"rendered":"What is the approximate height of the tropopause"},"content":{"rendered":"\n<p>What is the approximate height of the tropopause?<br>A. 100 km<br>B. 86 km<br>C. 50 km<br>D. 12 km<br>What is the approximate temperature of the tropopause?<br>A. -86 degrees C<br>B. -56 degrees C<br>C. -2 degrees C<br>D. 0 degrees<br>What is the approximate height of the stratopause?<br>A. 100 km<br>B. 86 km<br>C. 50 km<br>D. 12 km<br>What is the approximate temperature of the stratopause?<br>A. -86 degrees C<br>B. -56 degrees C<br>C. -2 degrees<br>D. 0 degrees C<br>What is the approximate height of the mesopause?<br>A. 100 km<br>B. 86 km<br>C. 50 km<br>D. 12 km<br>What is the approximate temperature of the mesopause?<br>A. -86 degrees<br>B. -56 degrees C<br>C. -2 degrees C<br>D. 0 degrees C<br>Does the temperature increase or decrease with altitude in the troposphere?<br>A. increase<br>B. decrease<br>Does the temperature increase or decrease with altitude in the stratosphere?<br>A. increase<br>B. decrease<br>Does the temperature increase or decrease with altitude in the mesosphere?<br>A. increase<br>B. decrease<br>Does the temperature increase or decrease with altitude in the thermosphere?<br>A. increase<br>B. decrease<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here are the correct answers for each question followed by a comprehensive 300-word explanation:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Correct Answers:<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Height of the tropopause:<\/strong><br><strong>D. 12 km<\/strong><\/li>\n\n\n\n<li><strong>Temperature of the tropopause:<\/strong><br><strong>B. -56 degrees C<\/strong><\/li>\n\n\n\n<li><strong>Height of the stratopause:<\/strong><br><strong>C. 50 km<\/strong><\/li>\n\n\n\n<li><strong>Temperature of the stratopause:<\/strong><br><strong>C. -2 degrees C<\/strong><\/li>\n\n\n\n<li><strong>Height of the mesopause:<\/strong><br><strong>B. 86 km<\/strong><\/li>\n\n\n\n<li><strong>Temperature of the mesopause:<\/strong><br><strong>A. -86 degrees C<\/strong><\/li>\n\n\n\n<li><strong>Temperature trend in the troposphere:<\/strong><br><strong>B. decrease<\/strong><\/li>\n\n\n\n<li><strong>Temperature trend in the stratosphere:<\/strong><br><strong>A. increase<\/strong><\/li>\n\n\n\n<li><strong>Temperature trend in the mesosphere:<\/strong><br><strong>B. decrease<\/strong><\/li>\n\n\n\n<li><strong>Temperature trend in the thermosphere:<\/strong><br><strong>A. increase<\/strong><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explanation (300+ words):<\/strong><\/h3>\n\n\n\n<p>Earth\u2019s atmosphere is divided into four primary layers: <strong>troposphere, stratosphere, mesosphere,<\/strong> and <strong>thermosphere<\/strong>, each separated by boundaries called pauses: <strong>tropopause, stratopause,<\/strong> and <strong>mesopause<\/strong>. These pauses mark changes in temperature gradients.<\/p>\n\n\n\n<p>The <strong>tropopause<\/strong>, located at about <strong>12 km<\/strong>, is the boundary between the troposphere and the stratosphere. It marks the point where temperature stops decreasing with altitude. At this height, the temperature reaches around <strong>-56\u00b0C<\/strong>. The troposphere is the lowest layer where weather occurs, and due to its proximity to Earth\u2019s surface and heat radiation from the ground, <strong>temperature decreases<\/strong> as altitude increases.<\/p>\n\n\n\n<p>Above this is the <strong>stratosphere<\/strong>, where the <strong>temperature increases<\/strong> with height due to the absorption of ultraviolet (UV) radiation by the ozone layer. This continues up to the <strong>stratopause<\/strong> at about <strong>50 km<\/strong>, where the temperature levels off around <strong>-2\u00b0C<\/strong>.<\/p>\n\n\n\n<p>Next is the <strong>mesosphere<\/strong>, where temperature again <strong>decreases<\/strong> with altitude. It reaches the <strong>mesopause<\/strong> at about <strong>86 km<\/strong>, one of the coldest places in Earth&#8217;s atmosphere, with temperatures plunging to about <strong>-86\u00b0C<\/strong>.<\/p>\n\n\n\n<p>Above that lies the <strong>thermosphere<\/strong>, where the temperature <strong>increases<\/strong> rapidly with height due to intense solar radiation being absorbed by sparse molecules. Despite high temperatures (which can exceed 1000\u00b0C), it wouldn&#8217;t feel hot due to the thin air and low molecular density.<\/p>\n\n\n\n<p>Each layer\u2019s temperature behavior is driven by how solar energy is absorbed. In the troposphere and mesosphere, heat sources are below, causing cooling with height. In the stratosphere and thermosphere, heat sources (UV and solar radiation absorption) are within or above the layer, causing warming with altitude.<\/p>\n\n\n\n<p>Understanding these patterns is essential for meteorology, aviation, and space science.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the approximate height of the tropopause?A. 100 kmB. 86 kmC. 50 kmD. 12 kmWhat is the approximate temperature of the tropopause?A. -86 degrees CB. -56 degrees CC. -2 degrees CD. 0 degreesWhat is the approximate height of the stratopause?A. 100 kmB. 86 kmC. 50 kmD. 12 kmWhat is the approximate temperature of the [&hellip;]<\/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-210318","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210318","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=210318"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210318\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=210318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=210318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=210318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}