Plate Techtonics

What was the name of the super-continent proposed by Wegener?

• Atlantis

• Gondwana

• Pangea

• Laurasia

Which layer of the Earth is made of the densest, hottest rocks?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the lithosphere?

• The liquid outer core

• The solid crust and upper mantle

• The dense inner core

• The gaseous atmosphere

What are convection currents?

• Movements of the ocean

• Circulating liquid in the mantle

• Air currents in the atmosphere

• Tidal waves in the sea

What is the role of the asthenosphere in plate tectonics?

• It supports the atmosphere

• It drives plate movement

• It creates weather patterns

• It forms the ocean floor

What is the lithosphere compared to in the text?

• A pot of boiling water

• A cracked egg shell

• A flowing river

• A solid rock

What is a convergent boundary?

• When two plates move apart

• When two plates slide past each other

• When two plates are pushed into each other

• When one plate sinks below another

What is the process that creates a circular current of flowing rock?

• Convection currents

• Divergent currents

• Transform currents

• Subduction currents

What happens when a continental plate collides with an oceanic plate?

• The oceanic plate rises above the continental plate.

• The continental plate sinks beneath the oceanic plate.

• The oceanic plate sinks beneath the continental plate.

• Both plates remain at the same level.

What is a subduction zone?

• A place where two plates slide past each other.

• A location where an oceanic plate sinks beneath a continental plate.

• A place where two plates move away from each other.

• A location where two plates collide and form mountains.