Large scale geologic activity apparently never occurred on
A) Europa.
B) Io.
C) Callisto.
D) Ganymede.

Question

Quizplus · Accepted Answer

Callisto, among the options given, is the one where large scale geologic activity apparently never occurred. Unlike Io, which is the most geologically active body in the Solar System due to tidal heating, and Europa and Ganymede, which show signs of past and present geologic activity, Callisto's surface is heavily cratered and ancient, indicating a lack of significant geologic reshaping.

Large Scale Geologic Activity Apparently Never Occurred on