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valina [46]
3 years ago
8

7. Where does oxygen come from in nature?

Biology
2 answers:
amm18123 years ago
6 0

Answer: Most of Earth's oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. So, mostly from plants, trees etc...

Hope I helped!

Nuetrik [128]3 years ago
6 0

Answer:

Most of Earth's oxygen comes from tiny ocean plants called phytoplankton that live near the water's surface and drift with the currents.

Explanation:

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