Plate Techtonics

The idea that the continents were once part of a single landmass that broke apart and

moved is

• Continental Drift

• Tectonic Plates

• Transform

What type of boundary is shown at A?

• transform
• convergent
• divergent
• subduction

What type of boundary occurs when two plates slide past each other?

• divergent
• transform
• lateral
• convergent

Mountains form at a ___________ boundary.

• transform
• divergent
• convergent
• subduction

A trench forms at a _________ boundary.

• convergent
• divergent
• transform
• vertical

What is happening at point B?

• subduction
• a divergent boundary
• convection
• an earthquake

What is the process in which two plates move toward each other but one sinks under the other?

• subduction
• convection
• divergence
• transformation

What is the process that continually adds new crust to the ocean floor along both sides of the mid-ocean ridge?

• subduction

• continental drift

• convergent

• sea floor spreading

What type of plate boundary is this?

• Plate
• Divergent
• Convergent
• Transform

At a divergent plate boundary where is the crust the YOUNGEST?

• In the middle of the ocean ridge where magma is rising

• Near the continental crust (farthest away from the ridge)

• Between the ridge and the continental crust