Makeup of the atmosphere

Biology

2 answers:

SCORPION-xisa [38]4 years ago

7 0

Answer:

The air near the earth’s surface consists of 77 percent nitrogen and about 21 percent oxygen.

Explanation:

I hope this helps

there is also a bit of Carbon Dioxide

otez555 [7]4 years ago

7 0

Answer: Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

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