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WAEC Geography 1998 Question 28

Question 28

Soils

Soils of the rainforest are rich in humus because of the

  1. A.multiple species of trees
  2. B.dense vegetation cover
  3. C.large quantity of decayed leaves
  4. D.absence of sunlight at the surface
  5. E.heavy rainfall
Show the answer and explanation

Answer: C (large quantity of decayed leaves)

Explanation

Huge amounts of leaves and plant matter fall and rot quickly, adding humus to the topsoil.