In Studying the Surfaces of Solid Bodies in the Solar

Multiple Choice

In studying the surfaces of solid bodies in the solar system, astronomers have learned that the number of craters (per unit area) :

A) is about the same on every world
B) is greater as you get closer to the Sun
C) is greater as you get further and further from the Sun
D) is roughly proportional to the age of the surface we are examining
E) follows no discernible rules or relationships at all