Rain and melting ice or snow are the main sources of _____________.
Smaller streams and rivers that flow into a major river are…
Water that flows over Earth’s surface is called _____________.
A body of water that flows within a channel is known as a…
All of the following are factors that affect runoff EXCEPT…
A river and all of its tributaries is a…
A land area that supplies water to a river system is a…
A large stream is also known as a…
The collapse of the top of a volcano that fills with water can create a basin called a…
All of the following is true about the Great Salt Lake in Utah EXCEPT…
A(n) _________ is a large body of water that forms in a basin surrounded by land.
Most lakes consist of…
What type of pollution comes from specific locations, such as a factory or sewer pipe?
Any substance that causes a negative impact on water quality is considered…
Which type of pollution causes increased growth of algae in water?
What type of pollution comes from gasoline or oil leaked on roads?
Pollution that comes from many places spread over a large area. Most U.S. pollution comes from this type of source.
This type of pollution comes from the excess use of fertilizers.
The continent of Antarctica and the country of Greenland are covered by the two largest ________ in the world.
An _________ forms when a glacier flows past a shoreline into the ocean.
Pores within rocks and sediment contain a mixture of air and water. This area is the...
The upper limit of the saturated zone is the...
At some distance beneath Earth’s surface, all rock and sediment pores are completely filled with water. The upper limit of this area is the...
An area of permeable sediment or rock that holds significant amounts of water is called a(n)...
A bog is a type of wetland that is...
_________________ can flow downhill until it reaches and becomes part of a stream or other surface water.
The type of water pollution created by runoff is...
Both bacterial and nutrient types of water pollution are caused by...
A swamp is a type of wetland that is...
A _____________ is an area of land that is saturated with water for all or part of the year.
A river and all of its ______________ together make up a river system.
An underground layer of rock and sediment that holds water is called a(n) ________________.
Huge masses of snow and ice that move slowly over land are called ___________________.
Warmer wetlands that include bushes and grasses are called _______________.
A glacier that spreads out over land in all directions is called an _________________.