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VARVARA [1.3K]
4 years ago
10

How oxygen and carbon dioxide are produced

Biology
2 answers:
enot [183]4 years ago
6 0
Oxygen is produced by photosynthesis. Carbon dioxide is produced by humans or animals inhaling oxygen and relapsing carbon dioxide
Bond [772]4 years ago
4 0

Oxygen is produced by trees through photothnthesis and carbon dioxide is prodeced by mammals and other things breathing it out or burning fule.

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