Sagot :
Answer:Scientists divided the time between Precambrian time and the present into FOUR units of time, or eras. PERIODS are subdivided into units of geologic time called ERAS.
Explanation:
Answer:
The ERAs
Explanation:
Scientists divided the time between Precambrian time and the present into FOUR units of time, or eras. PERIODS are subdivided into units of geologic time called ERAS.
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