Review of Ocean Basins Unit

What was the supercontinent called?

• Pangea
• Pandora
• Pantheon
• Pangalactica

What was the early theory about the continents moving through the ocean crust called?

• Isostacy
• Continental Shift
• Continental Drift
• Bathymetry

Who first proposed the theory of continental drift?

• Harry Hess
• Alfred Wegener
• Alfred Einstein
• Herbert Hugh

What is the idea that the sea floor is being pulled apart and creating new ocean crust at mid ocean ridges called?

• Sea floor spreading
• Sea isostacy
• Continental drift
• Continental shift

If ocean crust meets continental crust, what will happen?

• Ocean crust will sink under the continental crust
• Ocean crust will make mountains with continental crust
• Continental crust will sink under the ocean crust

What force is causing the plates to spread apart at mid ocean ridges?

• Conduction currents
• Convection currents
• Ocean currents
• Continental currents

What stage of the wilson cycle is divergent and is seen in the East African Rift Valley?

• Embryonic
• Juvenile
• Mature
• Declining

Rock closest to the mid ocean ridge will be...

• oldest
• newest
• most magnetic
• least magnetic

What is a trench classed as?

• Divergent Plate Boundary
• Convergent Plate Boundary
• Hot Spot
• Transform Plate Boundary

Earth's magnetic field does not change

• True
• False