NALLA SANJEEVA REDDY
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Posted 5 year ago
What is the percentage of oxygen in the air?
6 Answer(s)
Sunita Shirtode
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Pawan Kumar
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Savita Gopal Mali
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Nikku Yadav
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Posted 5 year ago Nikku Yadav Gurushala Teacher Coach

The normal air in our environment consists of a few different gases. Approximately 78 percent of the air is nitrogen gas while only about 20.9 percent is oxygen. The remaining fraction is made up of primarily argon gas, but trace amounts of carbon dioxide, neon and helium are also present.

Priya Soni
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Posted 5 year ago Priya Soni

21 percent

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