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27 August, 08:27

Which gas is most abundant in earth's atmosphere?

A. oxygen

B. nitrogen

C. carbon dioxide

D. methane

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Answers (2)
  1. 27 August, 08:43
    0
    The most is nitrogen, which accounts for 78% of the mass of dry air.
  2. 27 August, 12:14
    0
    The correct answer would be A if not C. Because scientific studys prove that carbon dioxide and oxygen are both in the air
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