Saturn's rings are: (multiple choice)

composed of ice particles.
within the planet's Roche limit.
in the plane of the planet's equator.
all of these.

all of the above.

Its a real shame, that there is such a lack of textbooks in school. And apparently all the search engines online are down tonight.

Hang on, let me check...hmmm, strange - they all seem to be working fine now.

http://en.wikipedia.org/wiki/Rings_of_sa…
http://solarsystem.nasa.gov/planets/prof…

Yep I say all of the above, since I know it has ice and it would have to be working the Roche limit because they are rings and that's just how it is. So all of the above.

are you quizzing us or trying to figure it out.

If you want to know it is all of the above.