Mass Extinction quiz

True Or False. Every Mass Extinction had a death rate of at least 70%

• True

• False

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Put the Extinctions in the correct order. ​ (a)   ​ (b)   ​ (c)   ​ (d)   ​ (e)  

from most farthest away to the most recent.

• Ordovician
• Devonian
• Permian
• Triassic
• Cretaceous (K-T)

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Which Mass Extinction wiped out the most living things?

• Ordovician

• Devonian

• Permian

• Triassic

• K-T

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During the Permian extinction, 96% of all species were killed. What very important element was removed from the oceans?

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Which one of these answers is NOT known to cause a mass extinction?

• Climate

• Sea Level Rise

• Meteor Impact

• Volcanism

• Increase in O2 (oxygen)

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There have been 5 mass extinctions in Earth's history. Which of the following answer choices was a cause of these extinctions? You may select more than one answer. Check all that apply.

• increased carbon dioxide (CO2) levels in the atmosphere

• an asteroid impact

• melting of glaciers and rising sea levels

• widespread volcanic activity

• All of them

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There have been 5 mass extinctions in Earth's history. Which of the following mass extinctions occurred first?

• End Permian

• Triassic

• Late Devonian

• End Ordovician

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A comet or asteroid impact on the earth is a frequently suggested cause for many of the mass extinctions. For which of the major mass extinctions does the most evidence exist that this was the main trigger for the event?

• End Permian

• Cretaceous (KT Event)

• Late Devonian

• Triassic

Which of the following might happen as part of normal background extinction?

• When all the species in a particular area on earth suddenly go extinct

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

• When one species goes extinct due to habitat changes

• When all life on earth is wiped out

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What is a mass extinction?

• When all the species in a particular area on earth suddenly go extinct
• When multiple species from all over the earth suddenly go extinct 
• When one species goes extinct due to habitat changes
• When all life on earth is wiped out 

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