The planet that is made up of rocks is Neptune
the planet mars is made of rocks and air
Sand and rocks.
Mercury has alot of rocks on is planet because t is made up of rock !
Squeezed out of the rocks that made up the planet - or comets. (Or a bit of both.)
Unknown - Probably either from squeezing it from the rocks that made up the planet OR from comets. (or both)
There are lots of different types of rocks that form the planets.
Saturn has rings of ice and rocks and at least 18 moons
its not its a water planet
Saturn
Air,gas,and rocks
A shooting star is made up of rocks then they go around a planet to get more speed then they go and crash on the earth or rome around it; a comet
no, there are no rocks because saturn is a gas giant, which means it is completely made of gas