Question

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9/12
paleozoic, mesozoic & cenozoic are all
epochs
eros
periods
eons

Explanation:

In geological time classification, the Paleozoic, Mesozoic, and Cenozoic are the three major divisions of the Phanerozoic Eon, categorized as eras. Eons are the largest time units, periods are smaller subdivisions within eras, and epochs are even smaller than periods.

Answer:

B. Eras