Mechanisms of Plate Movement

What is Geology?

• The study places and its relation to Earth

• The study of heat energy from inside the Earth

• The study of gene expression and hybridization

• The study of Earth’s physical structure and processes

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Where does mantle convection processes happen?

• Inner core

• Mantle

• Crust

• Outer Core

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Scientists believe that the tectonic plates forming the lithosphere are part of the circulation.

• True

• False

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The Appalachian Mountains in South America are made of rock types and have rock structures.

• True

• False

In 1913, Alfred Wegener, a German meteorologist, proposed the continental drift hypothesis.

• True

• False

What evidence has been gathered about existence of Moho and the Earth’s mantle?

• exposure to deep canyons

• drilling of holes

• refraction of earthquake waves

• satellite images

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The asthenosphere is described as “weak,” layer that has so much pressure and heat that the rocks can flow very much like a liquid.

• True

• False

Which of the following is correctly arranged in order of decreasing density?

• inner core, outer core, mantle, crust 

• mantle, crust, inner core, outer core

• outer core, crust, inner core, mantle

• crust, mantle, outer core, inner core

It is formed when two convection cells meet and move upwards.

• continental ridge

• continental crust 

• tectonic plates 

• oceanic ridge

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An oceanic ridge is formed where two convection cells meet and move upward.

• True

• False

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