The moon with an atmosphere denser than ours is ________.
Fill in the blank(s) with correct word
Question 2
The wispy terrain on Rhea was revealed by the Cassini spacecraft to be
A) ice cliffs created by tectonic fractures.
B) water ice flows from past impacts that cracked its icy surface.
C) the icy ash of water volcanoes.
D) maria created during the period of high impacts.
E) water ice flows from geyser-like activity.
