Every variation in the landscape.

A river that feeds another river.

A sheltered body of deep water near the shore.

The reason we have seasons.

When many mountains are together.

Wide area of level land

The longest river in the world.

An area of stagnant water.

The atmospheric conditions of an area at any given moment.

The theory that says that the earth’s surface is broken into masses of land that crash into and pull apart from each other releasing energy that causes volcanic activity and earthquakes

Wide areas of flat land that rise abruptly above the surrounding land.

The river with the most amount of water in the world.

Arms of the ocean partially enclosed by land.

The weather conditions of an area over a long period time.

The idea that the forces that shaped the earth as we now see it operated at the same rate at which they do today.

The theory that says a huge landmass called Pangea eventually broke apart to form the continents as we see them today.

The amount of water that flows from a river.

The three types of wetlands.

"Lacking moisture", it is the term used to refer to dry areas that receive 10 or less inches of rain.

the three ways God has provided to distribute the earth’s thermal energy?

The three ways mountains are formed.

A river and all its tributaries.

The largest lake in the world.

The soil that is permanently frozen in the polar or frigid zones.

Nutrient-rich soil deposited by rivers.