Sources of Water Pollution Quiz

What is watershed?
1. A place to store water.
2. An area of land that drains into a particular lake or river.
3. An area of sandy soil that collects pollutants.
4. Stationary wetlands that act as a sponge.
What is point source pollution?
1. Pollution that occurs over a wide area and enters streams in water that runs off from fields, parking lots, and other surfaces.
2. The process of filtering pollutants out of fresh water.
3. Pollution that can be traced to a particular place, such as an open pipe which drains into a body of water.
4. Pollution that results in many pollutants coming together.
What is non-point source pollution?
1. Pollution that occurs over a wide area and enters streams in water that runs off from fields, parking lots, and other surfaces.
2. The process of filtering pollutants out of fresh water.
3. Pollution that can be traced to a particular place, such as an open pipe which drains into a body of water.
4. Pollution that results in many pollutants coming together.
Select all examples that are MAJOR features of a watershed?
1. wildlife habitat
2. topography
3. size
4. soils
What is the advantage of sandy soil versus clay soil in terms of reducing runoff?
1. Clay soil allows the ground to soak up water faster.
2. Sandy soils are tighter and do not allows as much water to soak into the ground.
3. Clay soil can raise the water table underground.
4. Sandy soil allows the ground to soak up water faster.
When neighborhood residents noticed a large number of dead fish in a local creek, they traced the problem to a nearby gas station. It turned out that a tank of antifreeze had developed a leak. This is an example of
1. Point pollution
2. Nonpoint pollution
3. Thermal pollution
4. Ground water pollution
Some communities banned detergents containing high levels of phosphates because
1. phosphates cause chemical reactions that raise the temperature of river and lake water, disrupting ecosystems.
2. phosphates are not efficient cleansers.
3. excessive phosphates in lakes may begin a process that causes fish to suffocate and die.
4. phosphates kill algae and disrupt normal food webs in lakes.
Which of the following is the most likely source of point pollution?
1. Animal wastes that wash away from parks located in a specific city.
2. Leakage of radioactive waste from a secure landfill covering many acres.
3. Runoff of fertilizer applied to lawns by a single lanw-care company.
4. Sewage containing household chemicals from one housing subdivision.
Which of the following offers a way to control nonpoint pollution?
1. Restricting the types of trash buried in a city's only landfill.
2. Refusing to issue new permits for septic tank systems.
3. Collecting livestock wastes in storage pits for treatment.
4. Upgrading the requirements for underground storage tanks.
The boundaries of a watershed are areas of ____________________ elevation.
1. low
2. high
3. both a and b
4. none of the above
What SPECIFC effect of eutraphication causes large numbers of fish to be killed?
1. Increased levels of phospates
2. Increased amounts of bacteria
3. Decreased levels of dissolved oxygen
4. Increased amounts of algae
Which factor directly causes levels of dissolved oxygen to decline?
1. fish kills
2. increased algae growth
3. cold weather
4. increased amounts of bacteria