The cartographer who made this map decided not to
use geologic time in the key. Which is the oldest rock shows on the map?

A)rock labeled 9
B)rock labeled 1
C)cannot be determined
D)all rock is same age

The cartographer who made this map decided not to use geologic time in the key Which is the oldest rock shows on the map Arock labeled 9 Brock labeled 1 Ccannot class=