Jupiter's atmosphere is predominantly composed of all of the following EXCEPT

Jupiter's Great Red Spot is

The planet with the most moons is

How many rings does Saturn have?

The region around a larger planet where a small planet will be torn apart is called a/an

The rings around Uranus were discovered by

The primary source of geologic activity, volcanoes and earthquakes, on Io is

Which ONE of the following moon-characteristics suggests that a moon was probably "captured" after the planet formed?

Jovian planets with LOW internal heat sources seem to have

The most common characteristic among the jovian planets is their

The majority of moons around jovian planets were probably formed

If Jupiter formed with 10% more gas, it would be

The lack of impact craters on Io suggests intense

About how many Earths (6,378 km radius) would fit inside Saturn (60,268 km radius) if V=4/3 x (pi) x r^3 ?

If placed in a big enough bathtub filled with water, which planet would sink the fastest?

Europa and Ganymede exist in a "one to two" orbital resonance. If Ganymede takes 7.1 Earth days to orbit Jupiter once, then Europa must take

Around Saturn, particles in the "D" ring are moving at about 58,000 km/hr. If they are about 140,000 km from Saturn, how long do they take to go around once?

If Saturn's moon Titan was instead in orbit around our Earth, we would probably

On which planet would you expect to find the smallest number of dynamic weather systems in the atmosphere?