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Europa has frozen oceans.
neither. Europa is not a planet, but one of Jupiters moons.
Lo Europa and Ganymede
Its Calisto,Ganymede,Europa, and Io
Io, Europa, Ganymede and Callisto.
Europa
large from small are Ganymede, Europa, Callisto, and Io.
Europa probably contains a metallic iron core. Little information about its deep internal structure is known, but this is what scientists think.
Europa...
Europa is one of Jupiters moons. Jupiter has many moons, but Europa is one of the four large moons that was discovered in 1610 by Galileo Galilei (and possibly independently by Simon Marius around the same time).
we can't use jupiters moons for anything because fistly we can not get out that far to reach Jupiters moon and if we could it would take thousands of years and Jupiters Moons would be to big to do anything with anyway. so the answer to What could Jupiter's moons be used for? is....Nothing.
Cold, icy (perhaps liquid ocean because of tidal forces of Jupiter), and it is one of Jupiters moons.