Question

name any 2 sources of heat
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Answer 1

Answer:

There are three main sources of heat in the deep earth:

(1) heat from when the planet formed and accreted, which has not yet been lost;

(2) frictional heating, caused by denser core material sinking to the center of the planet; and

(3) heat from the decay of radioactive elements.

Explanation:

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Answer 2

Answer:

sun

wood or coal heaters

Explanation: