Which part of the Moon is the oldest and why?
A) the dark circular maria because they have had more time to darken
B) the dark circular maria because they have had more time to be eroded and smoothed off
C) the light-colored lunar highlands because they are lighter in color from longer weathering
D) the light-colored lunar highlands because they contain a higher density of craters per area
E) none of these

Question

Quizplus · Accepted Answer

The light-colored lunar highlands are the oldest part of the Moon, primarily because they contain a higher density of craters per area. This high density of craters indicates that they have been exposed to space for a longer period, allowing more time for impacts to occur compared to the darker, smoother maria, which are relatively younger and formed by volcanic activity after the highlands.

Which Part of the Moon Is the Oldest and Why