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andrew11 [14]
2 years ago
15

What process adds carbon dioxide to the air?

Biology
1 answer:
bagirrra123 [75]2 years ago
3 0

Answer:

cellular respiration...that's breathing out of humans

and through human activities like burning of fossil fuels...

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Option (3).

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7 0
3 years ago
Adapted from images courtesy of NIH and Wikipedia.
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