Chapter 7: Plate Tectonics

True or False-Similar fossil records across continents was evidence for continental drift.

• True

• False

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Alfred Wegener named his single supercontinent ____________, which means "all Earth" in ancient Greek.

• Pandora

• Gandowandaland

• Pangaea

• Percia

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What is the force that moves the continents?

• Conduction

• Convection

• Radiation

• Conveyor belts

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This is a picture of glacier scars found in Africa.  What are these evidence for?

• Africa has always been near the equator
• Africa was once in an area of the Earth that had a very cold climate
• The continents have not moved
• sea floor spreading

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What evidence did Wegener use to support his theory?

• Continents and fossils fitting together/matching-up like puzzle pieces

• glacier scars, coal beads and other climate evidence from temperature

• mountain ranges and rocks line up across continents

• all of the above

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What does the theory of continental drift state?

• The continents are in constant motion on Earth's surface

• Continents are stationary and do not move

• The Earth is broken into lithospheric plates that move due to convection currents

• none of the above

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Tectonic plates consist of____.

• Continental crust

• Oceanic Crust

• Both continental and oceanic

• Asthenosphere

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Most geologists think that the movement of Earth's tectonic plates is caused by

• the rotation of the Earth.

• the Earth's magnetic field.

• subduction.

• convection currents.

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What was Pangaea?

• It was a supercontinent, made of all of the landmasses on Earth.

• It was 2 separate landmasses, one on the Northern Hemisphere and one on the Southern Hemisphere.

• It was a supercontinent made of 3 landmasses

• It was the name of an ancient organism

Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?

• evidence from fossils

• evidence from human remains

• evidence from climates

• evidence from landforms