Plate Tectonics

The image illustrates what type of boundary?

• Divergent
• Convergent
• Transform
• Emergent

The image illustrates what type of boundary?

• Divergent
• Convergent
• Transform
• Emergent

The image illustrates what type of boundary?

• Divergent
• Convergent
• Transform
• Emergent

Which plate boundary creates a chain of volcanic mountains? Like the Cascade Mountain Range in Washington and Oregon, where the Juan de Fuca plate is sliding under the North American plate?

• Oceanic-oceanic Convergent

• Oceanic-continental convergent

• Continental Continental Convergent

• Divergent oceanic-oceanic plates

Scientists rejected the Theory of Continental Drift at first because

• they couldn't understand his theory
• Pangaea happened so long ago
• Alfred Wegener was a meteorologist
• convection currents were unknown

The best example to demonstrate convection currents is a(n)

• alka seltzer tablet in water
• wind blowing 
• lava lamp
• electric oven

What takes place because of sea-floor spreading?

• Crust is recycled.
• Crust is created.
• The ocean is evaporated.
• The sea floor remains unchanged.

Earth's plates meet at ____________.

• plate tectonics

• plate boundaries

• continental drift

• oceans

Breaks in the crust called __________ form where plates meet.

• mountains

• rift valleys

• faults

• trenches

Plates slide past each other at _________________ boundaries, a famous example of this is the San Andreas fault in California.

• divergent

• convergent

• transform

• universal