Unlike Jupiter and Saturn, at Uranus and Neptune the ________ ...

[kshipps]

Unlike Jupiter and Saturn, at Uranus and Neptune the ________ rotates the slowest.
 
  Fill in the blank(s) with correct word

Question 2

What is ice geology? Give an example illustrating why it is important in the outer solar system.
 
  What will be an ideal response?

[kjohnson]

Answer to Question 1

equator

Answer to Question 2

Ice geology is the formation of surface features due to ice melting and flowing, similar to lava flows on Earth. Many of the jovian moons are made of water, ammonia, and methane ices, and since these melt at far lower temperatures than rock, even small amounts of heating (from tidal effects for example) can sustain a surprising amount of geologic activity. An example is Enceladus, a small moon of Saturn, in which ice flows have filled in many craters.

[kshipps]

TY

[kjohnson]

You're welcome