Biology, asked by irinmariyam, 7 months ago

why doesn't the level of O2 the atmosphere decrease

Answers

Answered by kumarmukesh92653

2

Answer:

All human beings,plants and animals utilize oxygen present in atmosphere of reapiration. Yet ,the percentage of oxygen in the atmosphere is constant for many years and does not decreases beacuse the green plant which are capable of photosynthesis take up CO2 from the atmosphere and produce O2 in return.

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