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WAEC Agricultural Science 2005 Question 25

Question 25

Plant Forms and Crop Classification

The by-product in plant photosynthesis is

  1. A.carbon dioxide
  2. B.carbohydrates
  3. C.hydrogen
  4. D.oxygen.
Show the answer and explanation

Answer: D (oxygen.)

Explanation

Photosynthesis makes sugar and gives off oxygen as a by-product.