{"id":87647,"date":"2025-06-01T06:50:21","date_gmt":"2025-06-01T06:50:21","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87647"},"modified":"2025-06-01T06:50:21","modified_gmt":"2025-06-01T06:50:21","slug":"which-one-of-the-following-is-not-true-in-reference-to-air-mass","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-true-in-reference-to-air-mass\/","title":{"rendered":"Which one of the following is NOT true in reference to Air mass ?"},"content":{"rendered":"

Which one of the following is NOT true in reference to Air mass ?<\/p>\n

[amp_mcq option1=”Air mass forms either in tropical or in polar region” option2=”Air mass develops on continents as well as over ocean” option3=”Air mass develops in a cyclonic condition” option4=”Air mass changes the weather conditions” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nIt is NOT true that Air mass develops in a cyclonic condition.
\n<\/section>\n
\nAn air mass is a large volume of air that has relatively uniform temperature and moisture characteristics throughout, acquired from its source region.
\nA) Air mass forms either in tropical or in polar region: True. Source regions are typically large, homogeneous areas like tropical oceans, polar continents, etc.
\nB) Air mass develops on continents as well as over ocean: True. Source regions can be continental (cA, cT) or maritime (mA, mT).
\nC) Air mass develops in a cyclonic condition: False. Cyclonic conditions involve convergence and uplift, leading to mixing and non-uniformity. Air masses form in areas of stable, stagnant, or slow-moving air, usually under high pressure (anticyclonic) conditions where the air resides long enough to take on the characteristics of the underlying surface.
\nD) Air mass changes the weather conditions: True. When an air mass moves from its source region to another area, it brings its characteristic temperature and moisture properties, influencing the weather of the new region.
\n<\/section>\n
\nSource regions for air masses are typically high-pressure areas because the air in such systems is stable and subsides, allowing it to remain over a region for sufficient time to acquire uniform properties. Low-pressure systems (cyclones) are dynamic zones of converging and lifting air, which are not conducive to the formation of homogeneous air masses. Instead, cyclones often form along the boundaries (fronts) between different air masses.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is NOT true in reference to Air mass ? [amp_mcq option1=”Air mass forms either in tropical or in polar region” option2=”Air mass develops on continents as well as over ocean” option3=”Air mass develops in a cyclonic condition” option4=”Air mass changes the weather conditions” correct=”option3″] This question was previously asked in … <\/p>\n

Detailed SolutionWhich one of the following is NOT true in reference to Air mass ?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1119,1107,1106],"class_list":["post-87647","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1119","tag-the-atmosphere","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is NOT true in reference to Air mass ?<\/title>\n<meta name=\"description\" content=\"It is NOT true that Air mass develops in a cyclonic condition. An air mass is a large volume of air that has relatively uniform temperature and moisture characteristics throughout, acquired from its source region. A) Air mass forms either in tropical or in polar region: True. 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