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JAMB Biology 1984 Question 46

Question 46

Soil

Erosion can be reduced along a slope by

  1. A.ridging across slope
  2. B.ridging up slope
  3. C.ridging down slope
  4. D.crop rotation
  5. E.bush fallowing system.
Show the answer and explanation

Answer: A (ridging across slope)

Explanation

Ridges made across the slope (contour ridging) slow down running water and hold the soil in place.