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mahaynaitline4d
mahaynaitline4d mahaynaitline4d
  • 09-12-2015
  • Social Studies
Answered

Why is Earth's current atmosphere made up mostly of nitrogen and oxygen?

AEarth is eroding.
BEarth is warming up.
CEarth is continuing to cool.
DEarth has living things on the surface.

Verified Answer :

lobster
lobster lobster
  • 09-12-2015


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

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