The colors on a geologic map often indicate the of rock layers. A: depths
B: Heights
C: Ages
D:Temperatures

Ages because they indicate it the same way they do trees

hope this helped :)

C. ages. i believe.

Connecticut, delaware, maryland, massachusetts, new jersey, new york, new hampshire, north carolina, pennsylvania, rhode island, south carolina, virginia

Catac, dry land,and lizards