Social Sciences, asked by suraiyamansuri1283, 9 months ago

atmosphere contains _% of oxygen?
a. 28
b. 29
c. 21
d. 22

Answers

Answered by sneha6566

2

Answer:

atmosphere contains 21 percentage of oxygen and 78 percentage of nitrogen

Answered by Anonymous

4

☆ Answer: ☆

Earth's atmosphere contains 21% of oxygen.

(c) 21

More Information:

Atmosphere is the sphere of air in our Earth.
This sphere contains mainly Nitrogen and Oxygen.
The amount of Nitrogen present in the atmosphere is 78% and oxygen's amount is 21%.
The other 1% is composed of other gases such as Hydrogen, Argon, Carbon dioxide, etc.

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