Question

what are the four levels of division in the geologic time scale from largest to smallest?

a. epoch, period, era, eon
b. eon, era, period, epoch
c era, eon, period, epoch
d. period. era, epoch, eon

Explanation:

The geologic time scale is divided into units. The largest unit is an Eon. An Eon is divided into Eras. Eras are divided into Periods. Periods are divided into Epochs. So from largest to smallest: Eon, Era, Period, Epoch.

Answer:

B. Eon, Era, Period, Epoch