Which of the Following Is True Regarding the Geologic Time

question 40

Multiple Choice

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.

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