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ICSE Class 7 Answered

What is the composition of atmosphere?
Asked by chandanapal1979 | 14 Jun, 2019, 07:46: AM
answered-by-expert Expert Answer

Nitrogen and Oxygen are the two major gases that are present in atmosphere. Carbon dioxide, argon, helium, hydrogen and ozone are present in atmosphere in small quantities.

Nitrogen makes up 78% of the total volume of the atmosphere. 

Oxygen is the second most available gas in the air. It makes up 21% of the atmosphere. It is also known as the life giving gas as it is inhaled by human beings and animals.

Gases like argon, carbon dioxide, and water vapour constitute remaining one percent of the volume of atmosphere.

 
Answered by Social Science Expert | 14 Jun, 2019, 08:24: AM
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