Question

what does the geologic time scale confirm about the cretaceous period? it ended during the cenozoic era. it ended during the mesozoic era. it started before precambrian time. it started before the cambrian period.

Explanation:

The Cretaceous period was the last period of the Mesozoic era. It ended with the Cretaceous - Paleogene extinction event at the boundary between the Mesozoic and Cenozoic eras. The Precambrian time predates the Cambrian period, and the Cretaceous period started after the Cambrian.

Answer:

It ended during the Mesozoic era.