{"id":164908,"date":"2024-11-10T19:19:24","date_gmt":"2024-11-10T19:19:24","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=164908"},"modified":"2024-11-10T19:19:26","modified_gmt":"2024-11-10T19:19:26","slug":"nitrogen-and-oxygen-are-_-gases-in-the-atmoshere","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/10\/nitrogen-and-oxygen-are-_-gases-in-the-atmoshere\/","title":{"rendered":"Nitrogen and oxygen are _ gases in the atmoshere."},"content":{"rendered":"\n

Nitrogen and oxygen are _<\/strong> gases in the atmoshere.
A. Trace
B. Variable
C. Primary
D. Rare<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The correct answer is C. Primary<\/strong>.<\/p>\n\n\n\n

Nitrogen (N\u2082) and oxygen (O\u2082) are considered primary gases in the Earth’s atmosphere. These two gases are the most abundant in the atmosphere, accounting for about 99% of its composition. Nitrogen makes up roughly 78% of the atmosphere, and oxygen accounts for about 21%. These proportions remain relatively constant and are critical to sustaining life on Earth.<\/p>\n\n\n\n

    \n
  1. Nitrogen<\/strong> is an inert, colorless, and odorless gas that does not easily react with other elements or compounds, making it a stable and non-reactive component of the atmosphere. This stability is essential for maintaining the balance of gases in the atmosphere and plays a significant role in the nitrogen cycle, where it is fixed into forms usable by plants and organisms.<\/li>\n\n\n\n
  2. Oxygen<\/strong> is essential for the respiration of most organisms on Earth and is produced by plants through the process of photosynthesis. Oxygen is involved in combustion processes and supports life by allowing organisms to convert food into energy. Without oxygen, aerobic life forms, including humans, would not survive.<\/li>\n<\/ol>\n\n\n\n

    These primary gases differ from trace gases<\/strong>, which are present in much smaller amounts. For example, carbon dioxide (CO\u2082), argon (Ar), and methane (CH\u2084) are considered trace gases in the atmosphere. Similarly, variable gases<\/strong> like water vapor (H\u2082O) can change in concentration depending on environmental conditions, such as weather and geographical location.<\/p>\n\n\n\n

    Lastly, rare gases<\/strong>, or noble gases like helium, neon, and xenon, are present in extremely small amounts in the atmosphere. They are chemically inert and do not readily combine with other elements, unlike nitrogen and oxygen, which are reactive and play crucial roles in biological and physical processes.<\/p>\n\n\n\n

    In conclusion, nitrogen and oxygen are primary gases because they make up the bulk of Earth’s atmosphere and are essential for maintaining life and supporting various natural processes.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Nitrogen and oxygen are _ gases in the atmoshere.A. TraceB. VariableC. PrimaryD. Rare The Correct Answer and Explanation is: The correct answer is C. Primary. Nitrogen (N\u2082) and oxygen (O\u2082) are considered primary gases in the Earth’s atmosphere. These two gases are the most abundant in the atmosphere, accounting for about 99% of its composition. […]<\/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-164908","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/164908","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=164908"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/164908\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=164908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=164908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=164908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}