tcetink tcetink

15-12-2020
Geography

contestada

what are the 2 main sources of free oxygen?

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moonsmile moonsmile

15-12-2020

Answer:

Explanation:

Sources, Sinks, and Solubility

a body of water has two sources of oxygen: an external source (the atmosphere) and an internal source (photosynthesis)

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yangelica yangelica

15-12-2020

The major source is that oxygen is liberated as a by-product of photosynthetic chemical reactions. The second source occurs in the atmosphere itself when water molecules are split apart after being struck with ultraviolet radiation.

I’m 80% sure this is correct.

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