- The weight of the overlying materials exerts great pressure on the core resulting into high
temperatures.
-In the process of cooling, after breaking away from the sun the interior of the earth cooled at a
slower rate than the outer part hence it retained much of its original temperatures.
-Radioactivity: During the breaking up of the nucleus of an atom. The bardment of materials within
the mantle release a lot of energy which generated heat.
gideon1 answered the question on September 29, 2017 at 18:28
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