Continental Drift/ Sea Floor Spreading

What is it called when oceanic crust goes down into the mantle under the continental crust?

What is the name of the supercontinent when all the continents were connected?

Magma that turns into rock at the mid ocean ridge, has iron crystals that record

Evidence for sea floor spreading has come from

Which one of the following is not an evidence for sea floor spreading?

The oceanic crust is thicker and more dense than the continental crust.

Which one of the following is not evidence for a one time supercontinent.

The Pacific Ocean is

Which one of the following is not in the mid ocean ridge?

What force is cited as the driving force that moves the ocean plates?

Alfred Wegener showed that the sea floor was spreading and moved the continents

The mid ocean ridge is which one of the following?

Alfred Wegener used sonar to help him determine if the continents were moving.

What type of boundary is it when an ocean plate meets a continental plate?

What feature is usually found over subduction zones?

Apparently, the earth's magnetic poles have reversed in the past.

The presence of coal in Antarctica means that this continent must have

Which scientist proposed that the ocean floor was expanding around mid ocean ridges?

New oceanic lithosphere forms as a result of

The process that takes place at the mid-ocean ridges.