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Nov 22, 2015 · The longest subdivision of geologic time is an eon. An eon itself is then divided into subdivisions - these are known as eras, periods and epochs. Scientists are able to determine these different time periods by investigating certain geological details or studying fossil records. ocabanga44 and 27 more users found this answer helpful.
Jan 24, 2018 · Eon is the longest subdivision in geologic time, D.
43 minutes ago · The longest subdivision in geologic time is a(n) ____. a. epoch c. century b. period d. eon
Jan 31, 2021 · User: The longest subdivision in geologic time is a(n) ____.a. epoch c. century b. period d. eon Weegy: The longest subdivision in geologic time is a eon. Score 1 User: Trilobites are index fossils because they ____.a. changed slowly through time c. exhibit specific characteristics b. lived over large areas of the world d. all of the above
The Phanerozoic Eon is the current geologic eon in the geologic time scale, and the one during which abundant animal and plant life has existed. It covers