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WAEC Agricultural Science 2012 Question 7

Question 7

Soil Properties

The earthworm is important to the farmer because it

  1. A.improves soil texture.
  2. B.destroys soil pathogens.
  3. C.checks soil erosion.
  4. D.improves soil structure.
Show the answer and explanation

Answer: D (improves soil structure.)

Explanation

Earthworm casts bind particles into crumbs and their burrows open the soil, improving structure.