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WAEC Geography 1997 Question 41

Question 41

Nigeria: Physical Setting

The Niger-Benue trough of Nigeria is underlain mainly by

  1. A.crystalline rocks
  2. B.younger sedimentary rocks
  3. C.older sedimentary rocks
  4. D.basement complex rocks
  5. E.volcanic rocks
Show the answer and explanation

Answer: B (younger sedimentary rocks)

Explanation

The Niger-Benue trough is a sedimentary basin filled with young (Cretaceous and later) sandstones and clays, not crystalline basement rocks.