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

01-05-2018

The answer is A. Oxygen

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cornelius2516 cornelius2516

24-05-2019

The answer is A i had it on a test.

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