Planetesimals, asteroids, and comets crashed into the early Earth's surface which provided the only source of internal heat for Earth.

Question

Quizplus · Accepted Answer

While impact events did release heat upon striking the Earth's surface, they did not provide the only source of internal heat for Earth. The majority of Earth's internal heat is generated through radioactive decay within the Earth's mantle and core.

Planetesimals, Asteroids, and Comets Crashed into the Early Earth's Surface