Forces That Change Earth's Surface

Earth's plates are moved by

• the wind

• convection currents in the ocean

• convection currents in the crust

• convection currents in the mantle

When rocks weather, erode, cement, and compact, what kind of rocks form? (Hint: sometimes fossils form in it.)

• Sedimentary

• extrusive igneous

• intrusive igneous

• metamorphic

Which of the following is Earth's surface layer?

• core

• crust

• mantle

• plate

The Theory of Continental Drift says

• Earth's surface is made up of continents and oceans which stay in the same position.

• Earth's continents are moving and were once joined together as a supercontinent.

• ocean water around the continents is drifting

• the continents are worn down by erosion

Which of the following is true about Earth's plates?

• They rise and fall within the mantle

• They are made of soft rocks that flow like liquid

• They are pieces of rock that never move

• They are made of the lithosphere and float on the asthenosphere

Volcanoes form at what type of plate boundary?

• divergent

• convergent

• convergent/subduction

• transform

Mountains form at what type of plate boundary?

• divergent

• convergent

• subduction zones

• transform

Ridges and rift valleys form at what type of plate boundary?

• divergent

• convergent

• subduction zones

• transform

Where two tectonic plates meet it is called a

• zone

• boundary

• edge

• line

Strike-slip faults occur at boundaries where plates slide past each other. These boundaries are___.

• divergent boundaries

• convergent boundaries

• subduction zones

• transform boundaries