The Theory of Plate Tectonics

What is a divergent boundary?

• A deep valley where two plates move apart.

• A plate boundary where two plates move away from each other.

• A plate boundary where two plates move toward each other.

• A plate boundary where two plates move past each other in opposite directions.

What is a convergent boundary?

• A break in Earth's crust along which rocks move.

• A plate boundary where two plates move away from each other.

• A plate boundary where two plates move past each other in opposite directions.

• A plate boundary where two plates move toward each other.

What is a transform boundary?

• A plate boundary where two plates move past each other in opposite directions.

• A plate boundary where two plates move away from each other.

• A plate boundary where two plates move toward each other.

• A deep valley that forms where two plates move apart.

What is a rift valley?

• A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of the oceanic and continental crust.

• The theory that pieces of the lithosphere are in constant motion, driven by convection currents in the mantle.

• A break in Earth's crust along which rocks move.

• A deep valley that forms where two plates move apart.

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What is a fault?

• A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of the oceanic and continental crust

• A break in Earth's crust along which rocks move.

• A plate boundary where two plates move away from each other.

• A deep valley that forms where two plates meet.

What is a plate?

• The theory that pieces of the lithosphere are in constant motion, driven by convection currents in the mantle.

• A deep valley that forms where two plates move apart.

• A break in Earth's crust along which rocks move.

• A section of the lithosphere that slowly moves over the asthenosphere , carrying pieces of the oceanic and continental crust.

What are plate tectonics?

• The theory that pieces of the lithosphere are in constant motion, driven by convection currents in the mantle.

• A break in Earth's crust along which rocks move.

• A deep valley that forms where two plates move apart.

• A plate boundary where two plates move away from each other.

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Convection currents in the mantle cause______________

• The ocean to get bigger.

• The plates to melt.

• The plates to move.

• mountains to emerge.

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the slow and constant movement of Earth's plates___________

• create a transform boundary.

• cause earthquakes to occur.

• Has not changed Earth's surface

• Has changed Earth's surface.

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How has the slow and constant movement of Earth's plates changed the surface?

• it changed the location of the continents, the shape of the oceans, causes earthquakes, volcanoes, mountain ranges, deep ocean trenches.

• it changed the shape and size of the sun, the size of the moon, and Earth's place in the galaxy.

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