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11111nata11111 [884]
3 years ago
14

Urgent! question is attached, thankyou so much

Biology
1 answer:
Verizon [17]3 years ago
8 0

Answer:

C; Oxygen concentration

Explanation:

Oxygen is product, not a reactant in photosynthesis. Light and carbon dioxide are reactants, and extreme temperatures can denature the plant.

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