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Do plants that grow in water or partially in water, oxygenate the water with their roots?
Question Date: 2017-08-21
Answer 1:

Ordinarily, the oxygen comes out of the leaves, because that's where the stomata are that take in CO2 and where the oxygen is made. Ordinarily the roots consume oxygen, not produce it. There are probably some exceptions, but I can't think of any.

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