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Which epoch is associated with the Last Ice Age to occur in NYS?
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
The Geologic Time Scale has been subdivided into a number of time units called periods on the basis of
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
Geologists estimate the time of Earth's origin and the entire solar system to be
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
What event usually marks the end of one era and the beginning of another?
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
Approximately what percent of geologic time since the estimated origin of the Earth is represented by the Precambrian Era?
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
Which choice lists the units of geologic time in order from largest time unit to smallest?
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
A good index fossil must be...
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
Index fossils are important to studying geologic time because
fossil evidence
Pleistocene
Found everywhere in a short amount of time.
They mark a specific moment in geologic history.
a mass extinction
4.6 billion years ago
87%
Eon, Era, Period, Epoch
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