What surface characteristic suggests Callisto has had a geologically quiet history?

Answer

It is the most heavily cratered object in the solar system.

The extensive cratering indicates that the surface has remained relatively unchanged over long periods, pointing toward a lack of significant geological activity compared to moons like Io.

What surface characteristic suggests Callisto has had a geologically quiet history?

#Videos

Colonizing Callisto - Third Largest Moon In The Solar System

Universe Sandbox 2 - Terraforming the Moons of Jupiter (Io, Callisto ...

SpaceJupiterMoonterraformingCallistoterraform