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Question 13
1
Which best explains how photosynthesis is helpful to humans?
It reduces teh amount of harmful rays released by the sun.
It increases the levels of carbon dioxide in the air.
It provides oxygen for humans to breathe.
It produces proteins, which humans can eat.
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Answer 1

the answer is produces protein which humans can eat?

Answer 2

Step-by-step explanation:

It provides oxygen for humans to breathe..