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WAEC Agricultural Science 1995 Question 5

Question 5

Rocks and Soil Formation

The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is

  1. A.biotite
  2. B.quartz
  3. C.mica
  4. D.granite
  5. E.basalt.
Show the answer and explanation

Answer: B (quartz)

Explanation

Quartz is the hard, common mineral of granite and sandstone.