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Questions and Answers
What is plate tectonics?
What is plate tectonics?
- The theory that the earth is flat and does not move
- The theory that the earth's surface is broken into larger pieces of crust called plates (correct)
- The theory that the earth's surface is made of a single solid piece
- The theory that the moon's surface is broken into larger pieces of crust called plates
What is the upper part of the mantle known as?
What is the upper part of the mantle known as?
- Stratosphere
- Troposphere
- Lithosphere
- Asthenosphere (correct)
How thick can continental plates be?
How thick can continental plates be?
- Up to 300 km
- Up to 5-10 km
- Up to 150 km (correct)
- Up to 50 km
What did plate tectonics solve?
What did plate tectonics solve?
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In what century was plate tectonics proposed?
In what century was plate tectonics proposed?
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What is the main theory of plate movement?
What is the main theory of plate movement?
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What is the mantle layer of the earth mainly composed of?
What is the mantle layer of the earth mainly composed of?
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What causes the movement of plates at converging boundaries?
What causes the movement of plates at converging boundaries?
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What is the role of gravity in plate movement at oceanic trenches?
What is the role of gravity in plate movement at oceanic trenches?
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What is the main source of heat that drives the convection cells in the mantle?
What is the main source of heat that drives the convection cells in the mantle?
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