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WAEC Agricultural Science 2008 Question 10

Question 10

Rocks and Soil Formation

The three most important physical factors that influence rock weathering are

  1. A.colour, particle size and hardness of rock
  2. B.particle size, hardness and degree of cementation
  3. C.hardness, degree of cementation and colour
  4. D.particle size, temperature and colour.
Show the answer and explanation

Answer: B (particle size, hardness and degree of cementation)

Explanation

Grain size, hardness and how well particles are cemented decide how fast rock breaks down.