Environmental Sciences, asked by naseemalam3704, 7 months ago

What is the composition of oxygen in the atmosphere

Answers

Answered by beingaryanpandita
0

Answer:

21 %

Explanation:

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Answered by bhavnasharma25
0

Answer:

Air is made up of 78 percent nitrogen, 21 percent oxygen, 4 percent water vapor and 1 percent argon.

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