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What's the percentage of oxygen in the air​

2 Answers

8 votes

Answer:

21%

Explanation:

Air is mostly gas. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

What's the percentage of oxygen in the air​-example-1
User Cary
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There is 21 percent of oxygen in the air
User MohamedEzz
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