Which gas do plants take in from the air as a raw material for photosynthesis?

Answer and explanation

Correct answer: D. Carbon dioxide, which is combined with water to make glucose

  1. Step 1: Photosynthesis makes glucose from carbon dioxide and water using light energy. Step 2. Carbon dioxide enters through the stomata. Answer: Carbon dioxide. Why not the others: Oxygen is released, not a raw material; nitrogen is not used directly by leaves; hydrogen comes from water.

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