The heat that transformed the Earth early in its history came primarily from all but which of the following?
A)impact energy
B)gravitational energy
C)magnetic energy
D)decay of radioactive elements

Question

Quizplus · Accepted Answer

The heat that transformed the Earth early in its history primarily came from impact energy, gravitational energy, and decay of radioactive elements. Magnetic energy played a role in shaping the magnetic field, but it did not contribute significantly to the heat budget of the early Earth.

The Heat That Transformed the Earth Early in Its History