, one of Saturn's icy moons, is unusual in the solar system in that it has volcanic activity that ejects plumes of icy particles into space.

Enceladus

Explanation:

Enceladus is a small, icy body with an undergound ocean beneath its crust. Cassini discovered that geyser-like jets spew water vapor and ice particles. It is also the sixth largest moon in Saturn and just about a tenth of the largest moon in Saturn; Titan. It is often regarded as one of the most reflective body in the solar system as a result of its icy surface.

ill do it for 100, also this isnt 80 its 40

explanation:

newton's third law, for every action there is an equal and opposite reaction.