Mass Extinction Events Quiz

How many major mass extinction events have occurred in Earth's history?

• Three

• Five

• Seven

• Ten

What was the primary environment where life first developed?

• Aquatic

• Aerial

• Subterranean

• Terrestrial

What percentage of marine species disappeared during the first mass extinction event?

• 50%

• 70%

• 95%

• 85%

Which period was known for large armored jawed fish like Duncleosteus?

• Ordovician

• Devonian

• Triassic

• Permian

What is the most accepted theory for the cause of the Great Dying?

• Asteroid impact

• Methane release

• Volcanic eruptions

• Global cooling

What percentage of terrestrial species disappeared during the end-Permian extinction?

• 80%

• 70%

• 60%

• 50%

Which event defined the Triassic-Jurassic boundary?

• Fourth mass extinction

• Fifth mass extinction

• Second mass extinction

• First mass extinction

What was the main cause of the fourth mass extinction event?

• Sea level rise

• Global cooling

• Volcanic eruptions

• Asteroid impact

What was the diameter of the asteroid that ended the era of dinosaurs?

• 5-7 kilometers

• 10-12 kilometers

• 15-20 kilometers

• 8-10 kilometers

Which group of animals survived the mass extinction that ended the era of dinosaurs?

• Birds

• Mammals

• Amphibians

• Reptiles