(a) State two reasons why the interior of the earth is still very hot. (2 marks)
-The overlying layers of rock exert a lot of pressure thus generating heat.
-During the formation the interior cooled very slowly and still retains the original heat.
-Radioactivity within the core due to nuclear fusion results in generation of heat.
(b) Give the two layers of the earth’s crust. (2 marks)
-Sial/continental.
-Sima/oceanic
steve williams answered the question on November 17, 2017 at 10:15
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