Geologic Time Scale

Which time is considered the least understood span of Earth's history, due to a lack of fossil evidence?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian

Which era are humans living in?

• Cenozoic

• Mesozoic

• Paleozoic

What are the units of time in order from longest to shortest?

• Period, epoch, eon, era

• Epoch, period, era, eon

• Eon, period, epoch, era

• Eon, era, period, epoch

Tags

NGSS.MS-ESS1-4

Which is not considered an "era"?

• Paleozoic

• Permian

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

Which is considered a "period"?

• Precambrian

• Mesozoic

• Cretaceous

• Pleistocene

Tags

NGSS.MS-ESS1-4

Which period is considered the oldest, based on your geologic time scale?

• Permian

• Triassic

• Jurassic

• Cambrian

Tags

NGSS.MS-ESS1-4

Which era can humans first be found in?

• Paleozoic

• Mesozoic

• Cenozoic

Which is the greatest amount of geologic time?

• Precambrian

• Mesozoic

• Paleozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

Which era is the "age of the dinosaurs"?

• Cretaceous

• Triassic

• Mesozoic

• Pleistocene

10. By the ___ period, large tropical swamps extended across North America, eventually becoming the vast coal deposits of today.

• Cambrian

• Carboniferous

• Devonian

• Triassic

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2