jamniccal jamniccal

09-02-2021
Mathematics

contestada

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

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

please answer lol

Respuesta :

ellastults ellastults

09-02-2021

If I am right it should be D because pigs make methane

Answer Link

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