Plants produce carbohydrates from the CO2 present in the atmosphere by_________________?
Correct answer: B. Photochemical reaction
- A. Polymerisation
- B. Photochemical reaction
- C. Oxidation
- D. None of these
Explanation
Photosynthesis uses light energy to drive the conversion of atmospheric carbon dioxide and water into carbohydrates, so it is a photochemical reaction. Polymerisation may occur in forming starch, but it is not the primary process being described.
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