How Was the Geologic Time Scale Developed

Multiple Choice

How was the geologic time scale developed?

A) By correlating exposed rock sections from around the world.
B) By systematically dividing all of earth history into equally spaced time intervals, similar to the hours and minutes on a clock.
C) By radiometrically dating successive intervals in rock layers.
D) By compiling Biblical and historical records to reconstruct Earth's history.
E) All of the answers listed here.