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Where does most of the oxygen in the atmosphere come from? A. the process of evolution B. the process of photosynthesis C. the process of respiration D. the process of cellular respiration
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Where does most of the oxygen in the atmosphere come from?

A.
the process of evolution
B.
the process of photosynthesis
C.
the process of respiration
D.
the process of cellular respiration

User Thomasbabuj
by
6.5k points

1 Answer

4 votes
c. the process of photosynthesis
User Dave Moten
by
6.2k points
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