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Which of the following is NOT a way carbon dioxide returns to the atmosphere

a. decay of organisms
b. emissions by factories
c. photosynthesis
d. respiration

2 Answers

3 votes
C is the answer

photosynthesis



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User Bill Craun
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5 votes

Answer: c. photosynthesis

Explanation: photosynthesis gives off oxygen as a byproduct and not carbon dioxide. During photosynthesis, Green plants utilizies carbon dioxide to manufacture their own food and liberates oxygen as its byproduct.

In green plants, light energy from the sun is trapped by the chlorophylls in the chloroplast and utilized to convert water, carbon dioxide into oxygen and energy.

User Blakeoft
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