History, asked by maninderchahal432, 4 months ago

It is a pre cambrean eon that has a time interval of 2500 to570 millions years

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Answered by 21515

Answer:

Proterozoic: this eon refers to the time from the lower Cambrian boundary, 541 Ma, back through 2500 Ma. As originally used, it was a synonym for "Precambrian" and hence included everything prior to the Cambrian boundary.

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