Astronomers believe that the Moon did not differentiate to the same degree as Earth because:
A)the Moon was made of solid debris, not liquids like our hydrosphere.
B)the meteors that hit the Moon were lighter than those that hit us, so did not generate as muchheat on the surface.
C)the less dense and smaller Moon did not have as much radioactivity as the larger Earth in itscore.
D)the Moon was formed after the Earth was, so its radioactivity was less.
E)the Moon was made of very different materials than our mantle and crust.

Question

Quizplus · Accepted Answer

The less dense and smaller Moon did not have as much radioactivity as the larger Earth in its core, which led to less heat being generated and less differentiation occurring. The less dense and smaller Moon did not have as much radioactivity as the larger Earth in its core, which is one of the reasons astronomers believe that the Moon did not differentiate to the same degree as Earth.

Astronomers Believe That the Moon Did Not Differentiate to the Same