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Which of the following substances is used by plants as a reactant in photosynthesis?

A. carbon dioxide
B. glucose
C. oxygen
D. pyruvic acid

User QAH
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2 Answers

3 votes
Carbon dioxide and water.
6 votes


The answer is A. carbon dioxide.

Basically plants use carbon dioxide and water for photosynthesis.

User Mohammad Aghazadeh
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