How are the relative ages of the different types of terrain on Ganymede estimated?
A) The smoother the surface, the older is the terrain.
B) The colder the surface, the older is the terrain.
C) The darker the coloration, the older is the terrain.
D) The denser the cratering, the older is the terrain.

Question

Quizplus · Accepted Answer

The relative ages of terrain on celestial bodies like Ganymede are often estimated by crater density; more craters typically indicate an older surface because it has been exposed to space debris impacts for a longer period.

How Are the Relative Ages of the Different Types of Terrain