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Which of the following statements is true?

Automobiles are the leading cause of acid rain.
Both plants and animals can make protein using nitrogen compounds.
Animals add water vapor to the air through respiration.
Plants add water vapor to the air through photosynthesis.

1 Answer

2 votes

Answer:

I think it's C. Animals add water vapor to the air through respiration

Step-by-step explanation:

User Michael Hancock
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