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WAEC Agricultural Science 2010 Question 12

Question 12

Soil Properties

Physical properties of clay soil include

  1. A.low porosity and low capillarity.
  2. B.high porosity and high capillarity.
  3. C.low porosity and high capillarity.
  4. D.high porosity and low capillarity.
Show the answer and explanation

Answer: C (low porosity and high capillarity.)

Explanation

Clay's pores are tiny, so air and water move through it poorly (low porosity in the sense of drainage), but water rises well by capillarity.