Question

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

Explanation:

The Cretaceous period is part of the Mesozoic era. It started after the Triassic - Jurassic extinction event and ended with the Cretaceous - Paleogene extinction event. It did not start before the Precambrian time or the Cambrian period, and it ended before the Cenozoic era.

Answer:

It ended during the Mesozoic era.