pc3epnyart pc3epnyart
  • 04-04-2021
  • Biology
contestada


What two processes contributed oxygen to Earths
second atmosphere?

Group of answer choices

photosynthesis and volcanism

volcanism and weathering

photosynthesis and photolysis

weathering and rainfall

Respuesta :

aelmasri394
aelmasri394 aelmasri394
  • 19-04-2021

Answer: photosynthesis and photolysis

Explanation:

Ez

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