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Test-My Planet Earth
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How many eras is the geologic time scale divided into?
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4
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airo_23
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Terms in this set (40)
How many eras is the geologic time scale divided into?
4
How long in a geologic time period?
It varies
The _____ era was dominated by dinosaurs
Mesozoic
An undisturbed sedimentary layer is _______than the layer above, and _______ than the layer below
Older, Younger
Fossils are the most common in what type of rock layers?
Sedimentary