Shaping Earth's Surface

Front

What are fault-block mountains?

Back

Fault-block mountains are formed when tension pulls the crust apart, causing large blocks of the Earth's crust to drop or rise.

Front

What happens when two oceanic plates collide?

Back

The denser oceanic plate will subduct beneath the less dense plate.

Front

What occurs at an oceanic-oceanic convergent plate boundary?

Back

Old crust is recycled by subduction.

Front

What type of mountains are formed by volcanic activity?

Back

Volcanic mountains are formed when molten rock erupts onto Earth’s surface and hardens.

Front

Are impact craters caused by plate motion?

Back

False, impact craters are caused by the collision of meteoroids with the Earth's surface.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle.

Front

What are the three main types of mountains?

Back

The three main types of mountains are fold mountains, fault-block mountains, and volcanic mountains.

Front

What is the difference between uplifted mountains and fold mountains?

Back

Uplifted mountains are formed by the rising of the Earth's crust, while fold mountains are formed by the folding of the crust due to tectonic forces.

Front

What causes volcanic eruptions?

Back

Volcanic eruptions are caused by the movement of magma from beneath the Earth's crust to the surface.

Front

What is a tectonic plate?

Back

A tectonic plate is a massive slab of solid rock that makes up the Earth's lithosphere and moves over the semi-fluid asthenosphere.