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WAEC Agricultural Science 2010 Question 14

Question 14

Soil Fertility and Plant Nutrition

In the carbon cycle, atmospheric carbon dioxide is replenished by

  1. A.respiration.
  2. B.transpiration.
  3. C.lightning.
  4. D.denitrification.
Show the answer and explanation

Answer: A (respiration.)

Explanation

Respiration releases carbon dioxide back into the air.