Tectonic Plate Theory

Where do volcanoes most likely form?

• Volcanoes form below the surface of tectonic plates.

• Volcanoes form where earthquakes are least likely to occur.

• Volcanoes form where tectonic plates meet other plates.

• Volcanoes form in the middle of tectonic plates.

What will form at the boundary of these two plates?

• Mountains

• A Canyon

• A Trench

• Volcanoes

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Tectonic Plate Boundaries

• two tectonic plates collide

• Divergent Boundary

• two tectonic plates slide

• Convergent Boundary

• two tectonic plates move away

• Transform Boundary

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​ (a)   ​ (b)   make up the continents.

• Continental

• plates

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In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?

• The strong ocean currents are undermining both areas causing earthquakes.

• Both areas are located near the edge of the Pacific Ocean, the unstable sand cause earthquakes.

• Both areas are subjected to strong ocean wind and waves that cause earthquakes.

• Both areas are on the boundary of active plates, the motion of the plates cause earthquakes.

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What geological forces might be responsible for this range of mountains?

• diverging tectonic plates

• erosion of the land by the ocean

• converging tectonic plates

• deposition of sediments by the ocean
  

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Where would sea floor spreading most likely occur?

• At convergent boundaries (oceanic vs. oceanic)

• At convergent boundaries (oceanic vs. continental)

• At divergent plate boundaries (oceanic vs. oceanic)

• At transform plate boundaries

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A plate boundary where two plates move away from each other is called

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• Subduction

A Plate Boundary where two plates move toward each other is called

• Convergent Boundary

• Divergent Boundary

• Transform Boundary

• Subduction

Divergent Plate movement can create

• Convection Currents

• Conduction

• Mountains

• Rift valleys and mid ocean ridges

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