The image shows the geologic time scale from the Hadean eon to the
Phanerozoic eon.
Eons Hadean
Archean
Eons of the Geologic Time Scale
Proterozoic
Ediacaran
period
-4,600 4,000 3,200 2,500 1,600 1,000 541
Millions of years ago
300
Phanerozoic
2.6
Which two statements are supported by the information in the geologic time
scale?
A. Evolution has occurred most slowly during the Phanerozoic eon.
B. The diversity of life has increased as time has passed.
C. Many fossils of different species exist from the Hadean eon.
D. Most evidence from the Archean period comes from studying
rock samples.