Chapter 4: Plate Tectonics

During sea-floor spreading, the ocean floor eventually sinks into deep ocean canyons called trenches where ________ takes place, which is where the crust sinks back into the mantle.

• radiation
• conduction
• subduction
• evaporation

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NGSS.MS-ESS2-3

Which of the following is NOT a change to the Earth's surface caused by convection currents?

• the Grand Canyon
• deep ocean trenches
• volcanoes
• mountains

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NGSS.MS-ESS2-2

Sea floor spreading occurs on either side of a(n) _________ as new crust is added.

• mid-ocean ridge
• mantle
• earthquake
• magnetic stripe

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NGSS.MS-ESS2-3

Who first proposed the theory of continental drift?

• Wegener
• Wilson
• Pangea
• Hess

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NGSS.HS-ESS1-5

How do scientists learn about Earth's interior?

• aliens
• fossilized plants
• ocean currents
• rock samples and seismic waves

Alfred Wegener hypothesized that at one time all the continents were joined together in a single land mass he called

• Gondwana Land
• Tarabithia
• Neverland
• Pangea

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

________ was a Canadian Scientist that came up with the theory of plate tectonics.

• J. Tuzo Wilson
• Alfred Wegener
• Harry Hess
• Thomas Hook

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

All of the following are evidence to support the theory of continental drift EXCEPT

• land features
• fossils
• rainfall
• climate change

The Himalayas were formed by a ________ boundary between two __________ plates.

• convergent; continental
• transform; oceanic
• divergent; continental
• convergent; oceanic

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

________ boundaries are where two plates slip past each other, moving in opposite directions.

• Convergent continental
• Divergent
• Transform
• Convergent ocean

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NGSS.MS-ESS2-3