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GK QUESTION#3623

During the process of photosynthesis in plants, which of the following substances is released as a waste product?

  1. ANitrogen
  2. BOxygenCorrect answer
  3. CMethane
  4. DChlorine
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Answer

B. Oxygen

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Explanation

Oxygen is released as a by-product of oxygenic photosynthesis in plants. It originates from the light-dependent splitting of water; it can diffuse out of the plant.

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