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Why is Earth's current atmosphere made up mostly of nitrogen and oxygen? a. Earth is eroding. b. Earth is warming up. c. Earth is continuing to cool. d. Earth has living things on the surface.
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Why is Earth's current atmosphere made up mostly of nitrogen and oxygen?

a. Earth is eroding.
b. Earth is warming up.
c. Earth is continuing to cool.
d. Earth has living things on the surface.

User Ansuman Bal
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8.4k points

1 Answer

6 votes

The answer is D bc we humans need oxygen to breath.
User Azevedo
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