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JAMB Biology 2003 Question 36

Question 36

Soil

Soil fertility can best be conserved and renewed by the activities of

  1. A.Earthworms
  2. B.Man
  3. C.Rodents
  4. D.Microbes.
Show the answer and explanation

Answer: D (Microbes.)

Explanation

Bacteria and fungi decompose dead matter and release minerals back into the soil, and some fix nitrogen. This recycling keeps the soil fertile.