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kari74 [83]
3 years ago
6

This gas makes up close to one fourth of the air surrounding earth

Health
2 answers:
ohaa [14]3 years ago
7 0
Welllll, it's not really that close to one fourth.

One fourth is 25%.

The closest one is oxygen, which comprises about 18% of the air.
Vilka [71]3 years ago
5 0
Oxygen makes up about 21% of the earth's atmosphere and 78% is nitrogen with 1% other gases
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