Tectonic Plates

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

• Divergent Boundary
• Convergent Boundary
• Transform Boundary
• Subduction

Convergent Plate Movement can create

• Rifts
• Mountains
• Ocean Ridges
• Radiation

When pressure builds between two tectonic plates, it can suddenly release causing a (an) ______________________

• Earthquake
• Volcano
• Convection Current
• Gravitational Pull

During sea floor spreading, molten material rises up from the mantle...

• along the continents
• at the mid ocean ridges
• deep ocean trenches
• at north and south poles

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 causes earthquakes.

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

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

Most tectonic plates have both oceanic and continental crust. How are they different?

• Oceanic is thinner and less dense than continental.

• Continental is thinner than more dense than oceanic.

• Continental is thicker and less dense than oceanic.

• Oceanic is thicker and more dense than continental.

What geologic feature will form at a hot spot?

• volcano

• folded mountain

• deep sea trench

• rift valley

What type of plate boundary creates new sea floor?

• Divergent

• Convergent

• Transform

• Subduction

What type of plate boundary is represented in the picture?

• Athensphere

• Divergent

• Transform

• Convergent

Which crust subducts because it is denser than other crust?

• pizza crust

• oceanic crust

• continental crust

• new crust