The early differentiation of the Earth into a mantle and a core was created by ________________.
A)gravitational accretion of iron-rich particles in the core,followed by silicate-rich particles in the mantle
B)nuclear fission in the center of the Earth,which converted hydrogen and helium to iron
C)
The buildup of heat and the melting of iron which was pulled by gravity to the center of the Earth

Question

Quizplus · Accepted Answer

The early differentiation of the Earth into a mantle and a core was primarily caused by the accumulation of heat in the growing planet due to radioactive decay and impacts. The heat caused the melting of iron which then sank due to gravity towards the center of the Earth, creating the core. The less dense silicate materials rose to the surface and formed the mantle.

The Early Differentiation of the Earth into a Mantle and a Core