Front

What is a nonliving thing made of one or more minerals?

Back

Rock

Front

What can we do to reduce air pollution?

Back

Use public transportation

Front

What type of boundary is the San Andreas fault an example of?

Back

Transform boundary

Front

What is the theory that pieces of Earth's lithosphere are in constant motion?

Back

Plate tectonics

Front

What is sediment?

Back

Bits of rock, sand, and silt caused by the weathering of rocks.

Front

What is the process of rocks being broken down and carried away called?

Back

Erosion

Front

What is the top layer of soil that contains organic material?

Back

Topsoil

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the movement of tectonic plates called?

Back

Plate tectonics

Front

What is the term for the boundary where two tectonic plates move apart?

Back

Divergent boundary