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WAEC Geography 2017 Question 17

Question 17

Rocks

Which of the following rocks is sedimentary?

  1. A.Coal
  2. B.Gneiss
  3. C.Granite
  4. D.Marble
Show the answer and explanation

Answer: A (Coal)

Explanation

Coal forms from layers of plant remains; gneiss and marble are metamorphic, granite igneous.