The process by which heavier materials sank into the centers of terrestrial planets while lighter material rose to the surfaces early in the history of these planets is known as
A) hot-spot volcanism.
B) planetary differentiation.
C) seafloor spreading.
D) subduction.

Question

Quizplus · Accepted Answer

Planetary differentiation is the process by which denser materials within a planet sink to the center while less dense materials rise to the surface. This process occurred early in the history of the terrestrial planets, leading to the formation of their core, mantle, and crust layers.

The Process by Which Heavier Materials Sank into the Centers