Water Systems on Earth - Sections 10.2

The amount of salt dissolved in water is called
1. salinity.
2. salt content.
3. density.
4. specific gravity.
Water flow from city sewer systems would be classified as
1. run-off.
2. ground water.
3. an aquifer.
4. water table.
Which of the following is not a source of salt for the oceans?
1. Rainfall.
2. Dissolved materials from rocks.
3. Undersea volcanoes.
4. Volcanic eruptions on land.
Which of the following statements comparing the properties of salt and fresh water is true?
1. Salt water has a greater density and lower freezing point than fresh water.
2. Salt water has a greater density and higher freezing point than fresh water.
3. Salt water has a lower density and higher freezing point than fresh water.
4. Salt water has a lower density and lower freezing point than fresh water.
The two main dissolved solids in ocean water are
1. chloride and sodium.
2. sodium and magnesium.
3. magnesium and calcium.
4. sulfate and sodium.
Which of the following is not a factor that affects run-off?
1. Atmospheric pressure.
2. Amount of rain.
3. Length of time it rains.
4. Amount of vegetation.
Which of the following environments would be best at absorbing water and reducing run-off?
1. A large, flat forested area.
2. A hill that has recently been logged.
3. A steep, rocky slope.
4. A shopping mall with a large parking lot.
What separates one drainage basin from another?
1. An area of high ground.
2. A river.
3. A collection of small streams.
4. An area of ocean.
Digging into the ground will eventually lead to a level where there is water. The depth at which water is found is called
1. the water table.
2. the ground water.
3. an aquifer.
4. the well level.
Which of the following best describes a reservoir?
1. A large water storage used by a town.
2. An area of porous rock that allows water to flow through.
3. An area where flood water collects.
4. An area of land on which precipitation falls and works its way into a common river.

Water Systems on Earth - Sections 10.2 - 10.3 Quiz