EARTH SCIENCE
FOSSILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a type of fossil
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evidence that shows behavior of plants and animals
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time periods in which scientists measure when events took place
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clocks that show time in history
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Detailed explanation-1: -The four largest divisions of geologic time are the eons which include from oldest to youngest: the Hadean, Archean, Proterozoic, and Phanerozoic.
Detailed explanation-2: -The Phanerozoic Eon is divided into three eras, the Paleozoic, Mesozoic and Cenozoic eras. These were named for the kinds of fossils that were present. The Cenozoic is the youngest era and the name means “new life”.
Detailed explanation-3: -The eras are the four major divisions of the geological time scale: Precambrian, Paleozoic, Mesozoic, and Cenozoic.
Detailed explanation-4: -Very significant events in Earth’s history are used to determine the boundaries of the eras. Eras are subdivided into periods. The events that bound the periods are wide-spread in their extent but are not as significant as those which bound the eras.
Detailed explanation-5: -Eras. Eons of geological time are subdivided into eras, which are the second-longest units of geological time. The Phanerozoic eon is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic.