Mass Extinctions

What is a mass extinction?

• The introduction of a new species to an ecosystem

• A significant event where a large number of Earth's species become extinct in a short period of time

• A gradual decrease in biodiversity over millions of years

• The evolution of a species into a new form

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NGSS.HS-LS4-2

NGSS.HS-LS4-5

How is a mass extinction event typically defined in terms of its speed?

• It occurs over millions of years

• It is geologically rapid

• It happens over a few decades

• It is a slow and continuous process

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NGSS.HS-LS4-5

Which period's end is marked by the extinction of the dinosaurs, serving as an example of a mass extinction?

• Jurassic

• Triassic

• Cretaceous

• Permian

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What event causes environmental upheaval due to the release of greenhouse gases and ash into the atmosphere?

• Earthquakes

• Volcanic Activity

• Industrial Pollution

• Ocean Acidification

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Which event listed on the slide could potentially be caused by a nearby star?

• Plate Movements

• Sea Level changes

• Supernova

• Asteroid Impacts

What was a significant consequence of the Ordovician-Silurian Extinction?

• A significant increase in biodiversity

• The emergence of mammals

• A significant drop in biodiversity, particularly affecting marine life

• The appearance of the first land plants

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NGSS.HS-LS4-2

NGSS.HS-LS4-5

What is known as the "Great Dying"?

• Cretaceous-Paleogene Extinction

• Permian-Triassic Extinction

• Devonian Extinction

• Ordovician-Silurian Extinction

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NGSS.HS-LS4-5

What was the likely cause of the Permian-Triassic Extinction?

• Asteroid impact

• Massive volcanic eruptions in Siberia

• Rapid sea-level changes

• A sudden drop in global temperatures

What percentage of marine species became extinct due to the Permian-Triassic Extinction?

• About 50%

• About 70%

• About 96%

• About 85%

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NGSS.HS-LS4-5

Which geological signatures mark the Permian-Triassic Extinction event?

• Extensive layers of sedimentary rock and limestone deposits

• Extensive layers of volcanic rock and coal deposits

• Extensive layers of ice and glacial deposits

• Extensive layers of sandstone and shale deposits

Tags

NGSS.HS-ESS2-6