The main source of heat energy for the Earth's interior is a direct result of:
A) alpha decay, which is an unstable atom losing 2 protons and 2 neutrons
B) beta decay, which is an unstable atom losing an electron
C) gamma decay, which is an unstable atom losing a photon

Question

Quizplus · Accepted Answer

The main source of heat energy for the Earth's interior is primarily due to radioactive decay, particularly alpha decay, where unstable atoms lose 2 protons and 2 neutrons, releasing energy in the process.

The Main Source of Heat Energy for the Earth's Interior