According to the geological time scale, which segment of Earth's history is the oldest?
A) Hadean eon
B) Archean eon
C) Proterozoic eon
D) Paleozoic era
E) Cenozoic era

Name: According to the geological time scale, which segment of Earth's history is the oldest? A) Hadean eon B) Archean eon C) Proterozoic eon D) Paleozoic era E) Cenozoic era
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Question

Quizplus · Accepted Answer

The Hadean eon is the oldest segment of Earth's history, dating from the formation of the Earth about 4.6 billion years ago to about 4 billion years ago.

According to the Geological Time Scale, Which Segment of Earth's