Plate Tectonics

Which layer of the Earth is divided into plates?

• Lithosphere
• Asthenosphere
• Inner Core
• Outer Core

What causes the plates to move?

• conduction currents
• convection currents
• ocean currents
• wind currents

What is the name of the supercontinent that existed millions of years ago?

• Laurasia
• Pangaea
• North America
• Pacific Plate

Who first suggested the continental drift theory?

• Albert Einstein
• Abraham Ortellius
• Isaac Newton
• Alfred Wegener

During sea floor spreading, where will the oldest sea floor be found?

• Farthest from the plate boundary
• right next to the plate boundary 

What type of boundary has plates that move away from each other?

• convergent
• divergent
• transform

What type of boundary has plates that move toward each other, and one goes under the other, because one is less dense?

• Convergent
• Divergent
• Subduction
• Transform

What type of boundary has plates that move toward each other and creates mountains?

• convergent
• divergent
• transform

What type of boundary has plates that slide past each other?

• transorm
• convergent
• divergent

A deep depression on the sea floor, caused by subduction, is known as a-

• rift zone
• trench
• oceanic ridge
• mountain