Mass Extinction 8th grade

What is mass extinction?

• when dogs will go extinct

• when different plants and animals go extinct because of natural disasters or human activity

• having different animals all together in one place

• when the world will end

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How many types of Mass Extinction have there been so far?

• 3

• 1

• 9

• 5

What are the 5 different names of the extinctions that have already happened?

• Ordovician, Devonian, Nucleal, Permian, Triassic-Jurassic, Cretaceous-Tertiary

• Devonian, Ordovician, Permian, Triassic-Jurassic, Cretaceous-Tertiary

• Nucleal, Ordovician, Triassic-Jurassic, Cretaceous-Tertiary, Permian

• Permian, Nucleal, Triassic-Jurassic, Cretaceous-Tertiary, Ordovician

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What happened during the Ordovician Mass Extinction?

• Dinosaurs were killed by asteroids

• Small marine organisms died out

• Many tropical species went extinct

• All plant organisms were wiped out

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How many years ago did the Permian-triassic Extinction happen?

• around 250 million years ago

• around 365 million years ago

• around 65 million years ago

• 6 years ago

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What cause the Triassic-jurassic Extinction to happen?

• Asteroids hit earth

• Huge and widespread volcanic eruptions

• The fish species grew which cause multiple land and marine species to die

• Plastic in the ocean

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What happened during the Devonian Extinction?

• Small marine organisms died out

• All plant life was wiped out in the pacific ocean

• Many tropical marine species were wiped out because of plate tectonics and sea levels changing

• The dinosaurs went extinct

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What happened during the Cretaceous-tertiary Extinction?

• the species of dodo birds went extinct

• many small organisms died off

• all marine life died

• there was a die off of dinosaurs and other species

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What species went extinct during the ice age?

• lions

• dodo birds

• mammoths

• ostrich

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What cause the Devonian Extinction?

• asteroid impacts

• Deforestation

• Marine life taking over

• Mammoths eating everything