Geologic Time

Which is the longest unit of geologic time?

• Era

• Period

• Eon

• Epoch

Tags

NGSS.MS-ESS1-4

What is the order of the eras from longest to shortest?

• Eons, Eras, Periods, Epochs

• Eras, Periods, Eons, Epochs

• Epochs, Eras, Eons, Periods

• Periods, Eons, Epochs, Eras

Which era was dominated by the dinosaurs?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

Which era was dominated by the mammals?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which era was dominated by basic ocean life?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which era saw life move from land to the sea?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

In which era did the first life evolve?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

In which era did the first humans evolve?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

In which era did the first mammals evolve?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

In which era did we see the most new types of animals evolve (Explosion of Life)?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic