Catastrophic Events & Mass Extinction

Front

What is a mass extinction?

Back

When multiple species from all over the earth suddenly go extinct.

Front

What is the main cause attributed to the mass extinction at the end of the Mesozoic Era?

Back

Asteroid or comet impact.

Front

How many mass extinctions have occurred in Earth's history?

Back

Five mass extinctions.

Front

What is the largest mass extinction in Earth's history?

Back

Permian Extinction, where 96% of all species disappeared.

Front

What do we call a species that has no members still living?

Back

Extinct.

Front

What are some causes of mass extinctions?

Back

Increased carbon dioxide levels, asteroid impacts, melting glaciers, and widespread volcanic activity.

Front

What is the significance of the Permian Extinction?

Back

It is considered the largest mass extinction event in Earth's history.

Front

What is the difference between endangered and extinct species?

Back

Endangered species are at risk of extinction, while extinct species have no living members.

Front

What role do volcanic eruptions play in mass extinctions?

Back

They can release large amounts of ash and gases, affecting climate and ecosystems.

Front

How can climatic changes lead to mass extinctions?

Back

They can alter habitats and food sources, making survival difficult for many species.