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WAEC Geography 2014 Question 40

Question 40

Underground Water and Karst

Which of the following best explains why limestone areas are often dry?

  1. A.Limestone areas are subject to excessive evaporation.
  2. B.There is little rainfall in limestone areas.
  3. C.Rain water percolates easily through limestone rocks.
  4. D.Limestone areas have a lot of springs.
Show the answer and explanation

Answer: C (Rain water percolates easily through limestone rocks.)

Explanation

Water sinks quickly through the joints of limestone, leaving the surface dry.