All rock samples brought from the Moon by the Apollo astronauts are _________ rocks.
A) igneous
B) metamorphic
C) sedimentary
D) limestone
E) gneiss

Question

Quizplus · Accepted Answer

The Moon's surface is made up of predominantly igneous rocks, formed from solidification and crystallization of lava flows and volcanic eruptions. Therefore, all the rock samples brought back by the Apollo astronauts would also be igneous rocks.

All Rock Samples Brought from the Moon by the Apollo