Think about how the geologic time scale was created and how it is divided. Then answer the following questions.
How did scientists form the geologic time scale?
How is this scale organized?
What processes changed the Earth's environment during Precambrian time?
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Geologists organize the 4.6 billion years of earth's history into sections based on important changes seen in the geologic record. The largest intervals are eons, with each eon composed of many millions of years. ... The geologic timescale is continually being revised by new research and more accurate dating methods.
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Answer:
Geologists organize the 4.6 billion years of earth's history into sections based on important changes seen in the geologic record. The largest intervals are eons, with each eon composed of many millions of years. ... The geologic timescale is continually being revised by new research and more accurate dating methods.
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