The general shape of each of the Galilean moons of Jupiter is:
A) approximately spherical but with significant flattening of the polar axes (oblate shape).
B) almost perfectly spherical.
C) approximately spherical but with significantly shorter equatorial diameters than polar diameters (prolate shape).
D) irregularly rounded.

Question

Quizplus · Accepted Answer

The Galilean moons of Jupiter, which include Io, Europa, Ganymede, and Callisto, are large enough for their gravity to have pulled them into an almost perfectly spherical shape.

The General Shape of Each of the Galilean Moons of Jupiter