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WAEC Biology 1993 Question 60

Question 60

Soil

The property of clay soil that prevents it from supporting thick vegetation is its

  1. A.possession of chemically weathered granite rocks
  2. B.inability to retain much water
  3. C.tendency of becoming waterlogged
  4. D.porosity and low water retention ability
  5. E.high capillary spaces between the soil particles
Show the answer and explanation

Answer: C (tendency of becoming waterlogged)

Explanation

Clay holds so much water that it becomes waterlogged and poorly aerated, so roots cannot respire well.