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How is oxygen added to the air? A)Plants release oxygen as a waste product of photosynthesis. B)Animals release oxygen as a waste product of respiration. C)Oxygen is released from the burning of fossil
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How is oxygen added to the air?

A)Plants release oxygen as a waste product of photosynthesis.
B)Animals release oxygen as a waste product of respiration.
C)Oxygen is released from the burning of fossil fuels, such as coal.
D)Oxygen is released by plants as a waste produce of respiration.

User Gthuo
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Answer:

Its A i just did this question

Step-by-step explanation:

User Garima
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2 votes

The correct answer is A

User Artur Zagretdinov
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