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

19-04-2021

Answer: photosynthesis and photolysis

Explanation:

Ez

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