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UI Post-UTME Geography 2017 (Model questions) Question 4

Question 4

Weathering, Erosion and Mass Movement

Which of these is NOT a weathering process?

  1. A.the removal of regolith under the influence of weather
  2. B.the alteration of calcium carbonate in rocks to calcium bicarbonate
  3. C.The breakdown of rocks by plant roots
  4. D.the formation of clay minerals from feldspars in granites
  5. E.the disintegration of rocks by the freeze-and-thaw action
Show the answer and explanation

Answer: A (the removal of regolith under the influence of weather)

Explanation

Weathering is the breakdown of rock where it lies, as in B–E (feldspar to clay is hydrolysis). Removing the broken material is erosion, not weathering.