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JAMB Biology 1986 Question 49

Question 49

Soil

The following are methods of soil conservation EXCEPT

  1. A.contour terracing
  2. B.strip cropping
  3. C.contour ploughing
  4. D.mixed grazing.
Show the answer and explanation

Answer: D (mixed grazing.)

Explanation

Contour terracing, strip cropping and contour ploughing all slow down running water and reduce erosion. Mixed grazing is a way of managing livestock, not of conserving soil.