Geologic Eras Quiz

What is the oldest geologic era?

• Paleozoic

• Cenozoic

• Precambrian

• Mesozoic

How long ago did the Precambrian era begin?

• 65 million years ago

• 248 million years ago

• 540 million years ago

• 4500 million years ago

Which era is known as the age of reptiles?

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

What significant event began in the Cenozoic era?

• Formation of the first seas

• Development of marine animals

• Extinction of the dinosaurs

• Appearance of the first land plants

Which period is NOT part of the Mesozoic era?

• Paleocene

• Cretaceous

• Jurassic

• Triassic

What was a major characteristic of the Precambrian era's atmosphere?

• Stable and clear

• Dense and toxic

• Warm and humid

• Cool and dry

During which era did the first mammal ancestors appear?

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

What major geological feature began to form during the Cenozoic era?

• Mountain ranges

• Ocean basins

• Deserts

• Volcanoes

Which era is known for the evolution of complex life forms?

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

What caused the extinction of the dinosaurs according to the text?

• Lack of food

• Disease

• Climate change

• Meteorite impact