Question

The second most important source of heat on the erath is the — and wood .
give one word answer

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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