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Precambrian/Cambrian
A. Epoch
B. Era
C. Period
D. Eon

1 Answer

1 vote

Final answer:

The subject in question is geologic time, specifically the Precambrian/Cambrian period.

Step-by-step explanation:

The subject in question is geologic time, specifically related to the Precambrian/Cambrian period. In geologic time, the divisions are organized in descending order: Eons, Eras, Periods, and Epochs. The Precambrian/Cambrian period falls under the Phanerozoic Eon, Paleozoic Era, Cambrian Period, and is the first period in the Paleozoic Era.

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