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WAEC Geography 2004 Question 32

Question 32

Weathering, Erosion and Mass Movement

The peeling off of the surface layers of rounded boulders during mechanical weathering is called

  1. A.frost action.
  2. B.exfoliation.
  3. C.solifluction.
  4. D.rock fragmentation.
Show the answer and explanation

Answer: B (exfoliation.)

Explanation

Repeated heating and cooling make the outer shells of rock peel off like onion skins: exfoliation.