GP Flashcard 1

Front

What causes lithospheric plates to move?

Back

Convection currents in the mantle cause lithospheric plates to move.

Front

Lithospheric plates 'float' on which of Earth's layers?

Back

Lithospheric plates float on the mantle.

Front

True or False: Very little earthquake and volcanic activity occurs along plate boundaries.

Back

False. Most earthquake and volcanic activity occurs along plate boundaries.

Front

What are the big pieces that make up the Earth's outer shell called?

Back

Lithospheric plates.

Front

What is the rock type created when magma or lava cools and hardens?

Back

Igneous rock.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the process called when one lithospheric plate moves under another?

Back

Subduction.

Front

What is the layer of Earth beneath the lithosphere?

Back

The asthenosphere, which is part of the upper mantle.

Front

What is the term for the boundary where two tectonic plates meet?

Back

Plate boundary.

Front

What type of plate boundary is characterized by plates sliding past each other?

Back

Transform boundary.