Regions of North America

Lacking moisture, especially having insufficient rainfall to support trees or woody plants: an arid climate.

• Natural Resources

• Arid

• Tributary

• Elevation

The usual pattern of weather conditions in a region, such as temperature, precipitation, and wind.

• Environment

• Arid

• Polar

• Climate

Sharing an edge or boundary; touching.

• Erosion

• Contiguous

• Environment

• Continent

One of the main land masses of Earth: Africa, Antarctica, Asia, Australia, Europe, North America, and South America.

• Climate

• States

• Environment

• Continent

A line showing where North American waters drain either toward the Pacific or toward the Atlantic Oceans.

• Land Use

• Continental Divide

• Erosion

• Environment

The height above a defined point, such as sea level.

• Elevation

• Mountain

• Valley

• Plateaus

The totality of the natural world, often excluding humans.

• Climate

• Apocalypse

• Erosion

• Environment

Natural processes that wear away material from Earth’s surface.

• Erosion

• Tributary

• Land Use

• Natural Resource

A large area of a sea or ocean partially enclosed by land.

• Bay

• Gulf

• Arid

• Tributary

The way people use and change the natural environment.

• Renewable Resource

• Nonrenewable Resource

• Land Use

• Natural Resources