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Studies of sedimentary rocks and fossils have helped scientists understand the history of Earth. How is geologic time organized on the geologic time scale?

eras and then smaller millennia based on geologic and biologic events that occurred during those times

eras and then smaller periods based on geologic and biologic events that occurred during those times

millennia and then smaller periods based on geologic and biologic events that occurred during those times

periods and then smaller eras based on geologic and biologic events that occurred during those times

Respuesta :

Eras and then smaller periods based on geologic and biologic events that occurred during those times. According to geological time scale, there are six eras from the beginning some periods of few eras & then period is classified into smaller units called "epoch"

In short, Your Answer would be Option B

Hope this helps!

I just took the test your answer is option b