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25 April, 06:13

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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Answers (2)
  1. 25 April, 08:39
    0
    C. the process of photosynthesis
  2. 25 April, 08:43
    0
    The correct answer is "C. The process of photosynthesis."
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