manyah7470 manyah7470
  • 04-03-2019
  • Biology
contestada

Before there was life on earth, which gas was absent from the ancient atmosphere?

A. ammonia
B.methane
C .nitrogen
D. Oxygen

Respuesta :

ash34321
ash34321 ash34321
  • 04-03-2019
D oxygen there was no free oxygen on the earth
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