Astronomers Believe That the Moon Did Not Differentiate to the Same

question 17

Multiple Choice

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.