martianreader
martianreader martianreader
  • 21-04-2017
  • Biology
contestada

In the formation of Earth's atmosphere throughout its history, each of the following gases have, at one time or another, been the dominant gas in the atmosphere, EXCEPT
A) oxygen.
B) nitrogen.
C) water vapor.
D) carbon dioxide.

Respuesta :

xychus666 xychus666
  • 19-08-2019

Answer: A)Oxygen

The answer is a oxygen

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