How can craters tell us about the ages of surface regions of planets?

Name: How can craters tell us about the ages of surface regions of planets?
Brand: Quizplus
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Crater density increases with time, meaning that older regions of a planet will have a higher density of craters. This is because as time goes on, more and more impactors will have collided with the planet's surface, leaving more craters. Therefore, by examining the density of craters in a region, scientists can estimate its age.

How Can Craters Tell Us About the Ages of Surface