Geologic Time Quiz

What is the largest division of geologic time?

• Eons

• Periods

• Eras

• Epochs

Which era is known as the 'Age of Bacteria'?

• Cenozoic

• Precambrian

• Mesozoic

• Paleozoic

What caused the largest mass extinction at the end of the Paleozoic Era?

• Human activity

• Meteorite impact

• Volcanic eruption

• Climate change

During which era did dinosaurs become extinct?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian

What is the 'Age of the Reptiles' also known as?

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

Which era is known as the 'Age of the Mammals'?

• Mesozoic

• Cenozoic

• Paleozoic

• Precambrian

What caused the extinction of dinosaurs at the end of the Mesozoic Era?

• Volcanic eruption

• Meteorite impact

• Climate change

• Human activity

During which era did Pangaea form?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian

What is the 'Age of the Fish' also known as?

• Mesozoic

• Precambrian

• Paleozoic

• Cenozoic

What is the oldest era in geologic time?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian