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WAEC Biology 1992 Question 50

Question 50

Soil

The burning of farmlands should be discouraged because it

  1. A.destroys some plant pests
  2. B.reduces the population of wild animals on the farm
  3. C.makes bush clearing more difficult
  4. D.destroys the organic part of the soil
  5. E.reduces the dormancy period of some weeds
Show the answer and explanation

Answer: D (destroys the organic part of the soil)

Explanation

Burning destroys humus and soil organisms, making the soil poorer.