Geologic Periods Quiz

During which geologic period did the "Age of Reptiles" occur?

• Cretaceous

• Jurassic

• Triassic

• Permian

What is the geologic time scale term for the "Age of Mammals"?

• Paleocene

• Eocene

• Oligocene

• Miocene

Tags

NGSS.MS-ESS1-4

Which period is known for the first land plants?

• Silurian

• Devonian

• Ordovician

• Cambrian

Tags

NGSS.MS-LS4-1

What significant event occurred during the Vendian period?

• First multicelled organisms

• "Soft-bodied faunas"

• Snowball Earths (3-4x)

• First one-celled organisms

Approximately what percentage of Earth's geological time is comprised by the Precambrian?

• 47%

• 57%

• 87%

• 97%

Tags

NGSS.MS-ESS1-4

Which era is characterized by the dominance of dinosaurs and the appearance of flowering plants?

• Paleozoic

• Mesozoic

• Cenozoic

• Proterozoic

What is the primary gas believed to have been absent in Earth's early atmosphere, leading to the formation of the first organic molecules?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

During which period did the supercontinent Pangaea begin to break apart?

• Jurassic

• Triassic

• Permian

• Cretaceous