Question

Do plants need oxygen if so then what are their sources ?
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Answer 1

Answer:

Yes, plants need oxygen.

Explanation:

All the free oxygen in the atmospheric air is the result of photosynthesis. No animal can survive without oxygen as it is needed for respiration. Even the plants use the same oxygen in dark for their own respiration.

Answer 2

Answer:

Yes, plants need oxygen, all the free oxygen in the atmospheric air is the result of photosynthesis. No animal can survive without oxygen as it is needed for respiration. Even the plants use the same oxygen in dark for their own respiration.

Explanation:

I hope this helps