Which of the following factors contributed toward the early increase in temperature in the Earth's interior?

Question

Quizplus · Accepted Answer

Radioactive decay and impact from planetesimals both contributed to the early increase in temperature in the Earth's interior. Radioactive decay produces heat as unstable isotopes decay into more stable forms, releasing energy in the process. The impact of planetesimals also generated heat through friction as they collided with the Earth's surface. Together, these factors contributed to the formation and differentiation of the Earth's interior, with heavier materials sinking toward the core and lighter materials rising toward the surface.

Which of the Following Factors Contributed Toward the Early Increase