Multiple Choice
What is the order of rotation periods for the Galilean moons, from shortest to longest? (Hint: All four moons are in synchronous orbits.)
A) Io, Europa, Ganymede, Callisto
B) Io, Ganymede, Europa, Callisto
C) Ganymede, Europa, Io, Callisto
D) Callisto, Ganymede, Europa, Io
Correct Answer:

Verified
Correct Answer:
Verified
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