Although it is not yet known precisely how the Moon formed, an important clue is provided by the fact that
A) unlike Earth, the Moon has essentially no atmosphere.
B) the hemisphere of the Moon facing Earth is different from the hemisphere facing away.
C) the Moon is heavily cratered.
D) Moon rocks and minerals have very similar isotopic compositions to those of Earth.

Question

Quizplus · Accepted Answer

The similarity in isotopic compositions between Moon rocks and Earth suggests a common origin or significant interaction in their histories, supporting theories like the giant impact hypothesis for the Moon's formation.

Although It Is Not Yet Known Precisely How the Moon