department of Earth"s background into time units based largely on the kinds of life-develops that lived only in the time of specific periods
Assistance scientists divide Earth"s background into time units. the oldest rocks on the earth contain only a couple of fossils.

You are watching: The division of earth’s history into smaller units makes up the ____.


Is the earliest and also longest era in the geologic time scaleDuring this era earliest life creates appeared.
a single huge landmass that was written of all Earths continents joined together. Formed in the time of the Paleozoic era.

See more: Types Of Air Mass Worksheets


followed the Paleozoic Period. Dinosaaurs, birds, tiny mammals and also flowering plants first showed up during Mesozoic time.
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Planet Science: The Physical Setting (Prentice Hall Quick Rewatch for the New York Regents Exam)Jeffrey C. Callister
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