Io would probably be less active geologically if:
A) its orbit were circular.
B) it were closer to Jupiter.
C) Europa and Ganymede were closer to it.
D) Jupiter did not rotate at such a high rate.

Question

Quizplus · Accepted Answer

Io's geologic activity is caused by the tidal forces from Jupiter and its neighboring moons Europa and Ganymede. If Io's orbit were circular, these tidal forces would be lessened and therefore result in less geologic activity.

Io Would Probably Be Less Active Geologically If