Early during Earth's history what two things contributed heat that led to the internal melting and formation of the core?
A) a hotter proto- sun and the burning off of Earth's early hydrogen atmosphere
B) tidal forces and friction between moving unconsolidated meteorite debris
C) chemical reactions between early unstable elements
D) kinetic energy of impacts from nebular debris and decay of radioactive elements

Question

Quizplus · Accepted Answer

The kinetic energy from impacts during Earth's early formation and the decay of radioactive elements within the Earth contributed significant heat. This heat was crucial for the internal melting processes that led to the differentiation and formation of the Earth's core.

Early During Earth's History What Two Things Contributed Heat That