jakiyamalcolm121 jakiyamalcolm121
  • 01-05-2018
  • Biology
contestada

Earth's atmosphere is unique among the planets because it contains a large amount of ___________. A) oxygen B) helium C) methane D) carbon dioxide

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faithlynnae06
faithlynnae06 faithlynnae06
  • 01-05-2018
The answer is A. Oxygen
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cornelius2516
cornelius2516 cornelius2516
  • 24-05-2019

The answer is A i had it on a test.

Explanation:

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