Plate Tectonics

What type of boundary is this?

• convergent

• divergent

• transform

What type of boundary is this?

• convergent

• transform

• divergent

What type of boundary is this?

• convergent

• divergent

• transform

What evidence was NOT used by Wegener as proof of continental drift?

• land features

• erosion

• climate

• fossils

What is a plate boundary where both plates move away from each other?

• divergent

• plate

• convergent

• transform

According to Wegener's theory of continental drift,

• Earth's surface is made up of seven major landmasses

• the continents do not drift

• Earth is slowly cooling and shrinking

• the continents were once joined together in a single landmass and have slowly moved.

What is the process that continually adds new crust to the ocean floor along both sides of the mid-ocean ridge?

• subduction

• continental drift

• convergent

• sea floor spreading

What is a plate boundary where two plates move toward each other?

• transform

• convergent

• divergent

What is a plate boundary where two plates slip past each other moving in opposite directions?

• transform

• convergent

• divergent

Most geologists think that the movement of Earth's plates is caused by

• conduction

• earthquakes

• convection currents in the mantle

• Earth's magnetic field