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Romashka-Z-Leto [24]
3 years ago
11

What's the percentage of oxygen in the air​

Geography
2 answers:
fenix001 [56]3 years ago
6 0

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.

taurus [48]3 years ago
3 0
There is 21 percent of oxygen in the air
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