OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The biggest unit of time on the Geologic Time Scale is
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an era
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a period
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an eon
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an epoch
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Explanation:
Detailed explanation-1: -An eon is the largest (formal) geochronologic time unit and is the equivalent of a chronostratigraphic eonothem. As of October 2022 there are four formally defined eons/eonothems: the Hadean, Archean, Proterozoic, and Phanerozoic.
Detailed explanation-2: -The largest unit of time is the eon, which is divided into eras. Eras are further divided into periods, and periods are divided into epochs.
Detailed explanation-3: -To make geologic time easier to comprehend, geologists divided the 4.6 billion years of Earth’s history into units of time called eons. Then they further divided the eons into two or more eras, eras into two or more periods, periods into two or more epochs, and epochs into two or more ages.
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