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7 June, 07:51

What gas important to life was absent from earth's earliest atmosphere?

A.

nitrogen

B.

methane

C.

oxygen

D.

carbon dioxide

+3
Answers (2)
  1. 7 June, 07:56
    0
    Nitrogen i think is the asnwer
  2. 7 June, 09:33
    0
    The answer would be C, oxygen because there was not a sufficient amount.
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