WAEC Biology 2022 Objective — Question 28
Question 28 of 50 from the West African Examinations Council (WAEC) Biology 2022 Objective paper, with the correct answer and a full explanation.
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The property of clayey soil that prevents it from supporting thick vegetation is its
- A. composition of chemically weathered granite rocks
- B. inability to retain much water
- C. tendency of becoming waterloggedCorrect
- D. porosity and low water-retention ability
Explanation
Clayey soil has very fine particles that pack tightly, causing poor drainage and a tendency to become waterlogged, which prevents it from supporting thick vegetation (roots become oxygen-starved).
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