Author Question: The chief erosive agent now on the Moon is A) lunar ice melting and refreezing in the polar ... (Read 30 times)

Yi-Chen · **on:** Jul 27, 2018

The chief erosive agent now on the Moon is

A) lunar ice melting and refreezing in the polar regions.
B) lava flows welling up in the mare.
C) volcanic vents in the rugged highlands.
D) the rain of micrometeorites chewing up the regolith.
E) rain from cometary debris melting as it enters the Moon's atmosphere.

Question 2

Jupiter's dark ________ are regions of cooler material that is sinking into the interior.

Fill in the blank(s) with correct word