passwella.
Menu

WAEC Geography 2000 Question 16

Question 16

Rocks

Granitic rocks contain

  1. A.silica, aluminium and iron
  2. B.silica, iron and magnesium
  3. C.iron and manganese
  4. D.silica and bauxite
Show the answer and explanation

Answer: A (silica, aluminium and iron)

Explanation

Granite is the main rock of the continental crust (SIAL), rich in silica and aluminium; silica, iron and magnesium describe basalt (SIMA).