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1 April, 00:13

How is most of the oxygen on Earth produced?

A. By plankton and aquifers

B. By rocks and humans

C. By plants and plankton

D. By plants and humans

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Answers (2)
  1. 1 April, 00:19
    0
    C. By plants and plankton
  2. 1 April, 00:35
    0
    I believe the answer to your question is C. By plants and plankton.

    Good luck!
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