admitasubba admitasubba
  • 20-05-2021
  • Biology
contestada

What was the major contributor of oxygen to earth's early atmosphere ?

A) photosynthesis

B) Organic respiration

C) ozone decomposition

D. Decomposition of ocean water

Explain your answer in your own words

Respuesta :

jaylen122908m jaylen122908m
  • 20-05-2021
I this the answer is B
Answer Link
kennedyhopkin135
kennedyhopkin135 kennedyhopkin135
  • 20-05-2021
The answer is A) photosynthesis
Answer Link

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