GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How long is an eon in geology?
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A million years
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A trillion years
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A billion years
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A thousand years
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Explanation:
Detailed explanation-1: -The Proterozoic Eon is the most recent division of the Precambrian. It is also the longest geologic eon, beginning 2.5 billion years ago and ending 541 million years ago.
Detailed explanation-2: -The Daisyworld modeling approach was adapted to study the regulation of climate and atmospheric composition on the early Earth, through the Archean Eon (4.0–2.5 billion years ago) and the first half of the Proterozoic Eon (2.5–1.5 billion years ago).
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