Which of the following is true regarding the geologic time scale?
A)the bulk of Earth's history has occurred during the Cenozoic era.
B)over 87 percent of Earth's history has elapsed during the more recent Cenozoic,Mesozoic,and Paleozoic eras.
C)both relative and absolute dating methods are used in determining the sequence of the time scale.
D)we live in the Tertiary period.
E)there have been only two periods of major extinctions in geologic time.

Question

Quizplus · Accepted Answer

The geologic time scale is determined using both relative and absolute dating methods to establish the sequence of events in Earth's history. The other answer choices are incorrect. The bulk of Earth's history actually occurred during the Precambrian eon, not the Cenozoic era, and over 87 percent of Earth's history has elapsed during the Precambrian and Archean eons. We live in the Quaternary period, not the Tertiary period, and there have been several periods of major extinctions throughout geologic time.

Which of the Following Is True Regarding the Geologic Time