Earth's most important internal heat source is/are______ .
A) solar winds
B) radioactivity melting
C) coal seams
D) planetary collisions

Question

Quizplus · Accepted Answer

Earth's most important internal heat source is radioactivity melting, which is caused by the decay of radioactive isotopes in the Earth's mantle and core. This heat is responsible for driving plate tectonics, volcanic activity, and the geothermal energy used for power generation. Solar winds, coal seams, and planetary collisions do not provide significant internal heat for the Earth.

Earth's Most Important Internal Heat Source Is/are______