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JAMB Biology 1979 Question 27

Question 27

Soil

The farmer cannot check soil erosion effectively by

  1. A.constructing his ridges for planting across the slope
  2. B.cultivating cover crops
  3. C.practising strip cropping
  4. D.clearing the land of vegetation
  5. E.constructing terraces
Show the answer and explanation

Answer: D (clearing the land of vegetation)

Explanation

Removing vegetation leaves soil bare to rain and wind, which increases erosion.