What actually controls Saturn's rings?
a. Saturn's magnetic field
b. Saturn's tidal heating
c. Saturn's moons
d. Saturn's rapid rotation
e. Saturn's metallic core
Question 2
What makes Iapetus different than most other Jovian satellites?
a. Its surface is so eroded that it has no distinguishing surface features.
b. It is not impacted by Saturn's tidal heating.
c. It is perfectly spherical and highly reflective.
d. It has an old and heavily cratered surface.
e. It is asymmetrical and always faces backward to Saturn.