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Why do earth scientists need a geologic time scale?.
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Why do earth scientists need a geologic time scale?.

User Shawn Wang
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21 votes
The geologic time scale is used by scientists to depict the sequence of events on earth. Scientists devised the geologic time scale after noticing differences in fossils as they progressed from oldest to youngest sedimentary strata.
User Erty Seidohl
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The geologic time scale is used by scientists to depict the sequence of events on Earth. Scientists devised the geologic time scale after noticing differences in fossils as they progressed from oldest to youngest sedimentary strata.
User Toby Crawford
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