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.

Question

Quizplus · Accepted Answer

The geologic time scale is determined by both relative and absolute dating methods, with relative dating determining the sequence of events, and absolute dating assigning numerical ages to those events. Option A is incorrect as the Cenozoic era only comprises the last 66 million years of Earth's history. Option B is incorrect as the three aforementioned eras only make up about 25% of Earth's history. Option D is incorrect as the Tertiary period is no longer recognized in the current geologic time scale, having been replaced by the Paleogene and Neogene periods.

Which of the Following Is True Regarding the Geologic Time