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WAEC Agricultural Science 1991 (August) Question 2

Question 2

Rocks and Soil Formation

Use the diagram (a soil profile with layers labelled I to V) to answer this question. Which of the following areas has a significant influence on the properties of soils formed from it?

Diagram for this question
  1. A.V
  2. B.IV
  3. C.III
  4. D.II
  5. E.I.
Show the answer and explanation

Answer: A (V)

Explanation

The bottom layer (V) is the parent rock, which decides the minerals and texture of the soil formed above it.