Which of the following processes has added heat to Earth's interior during or after its formation?
A) collision of asteroids and meteoroids with Earth
B) formation and sinking of masses of iron and nickel
C) radioactive decay
D) all of these

Question

Quizplus · Accepted Answer

All of these processes have contributed to adding heat to Earth's interior. Collisions of asteroids and meteoroids provided kinetic energy that was converted into heat upon impact. The formation and sinking of iron and nickel masses into the core released gravitational potential energy as heat. Radioactive decay of elements within the Earth generates heat over time.

Which of the Following Processes Has Added Heat to Earth's