Shaping Earth's Surface

Front

The driving forces of tectonic plates are related to convection currents in Earth’s ____.

Back

mantle

Front

What are formed when two continental plates collide?

Back

Mountain ranges

Front

At an oceanic-oceanic convergent plate boundary, ________________.

Back

old crust is recycled by subduction

Front

What type of mountains are formed when molten rock erupts onto Earth’s surface and hardens?

Back

volcanic mountains

Front

Volcanoes can form over a plume, or rising current of hot mantle. As a tectonic plate slowly moves over a plume, a volcano will form and then become extinct as it moves away from the hot spot. Then the next volcano will form. If the hot spot shown made all the islands in the figure, is the plate pictured below moving toward you or away from you?

Back

The plate is moving away from me.

Front

Why do volcanoes and earthquakes occur in so many of the same areas?

Back

Both often occur near plate boundaries

Front

A(n) ____ can be caused by an underwater earthquake.

Back

tsunami

Front

If 2 oceanic plates collide, which one will subduct?

Back

The plate that is more dense

Front

Which mountain range is older: the Appalachian Mountains or the Rocky Mountains?

Back

The Appalachian Mountains

Front

Fault-block mountains occur where _____?

Back

tension pulls the crust apart