Answer: Eon has the longest duration.
Eon is further subdivided into eras and era is further subdivided into periods, epochs and stages. An eon can be referred to as indefinite duration or extremely long period of time. Eons is said to have the longest duration because it is more than one era or a period or an epoch.
Which of the following has the longest duration?
Eon has the longest duration. Eon is the longest duration in geological time. EON Actually refers to a span of 1 billion years in science.
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