1. What is the primary purpose of a water reservoir for a community?
- A. To provide a designated area for recreational boating and fishing.
- B. To store a reliable supply of freshwater for community needs.
- C. To generate hydroelectric power for the surrounding region.
- D. To serve as a natural habitat for local aquatic wildlife.
2. Which two factors are most directly responsible for the balance of the water level in a natural lake used as a reservoir?
- A. The daily air temperature and the speed of the wind.
- B. The number of fish and the types of aquatic plants living in the lake.
- C. Inflow from rain and rivers, and outflow from community water usage.
- D. The depth of the lake and the geological composition of the lakebed.
3. Under which condition would the water level of a community's reservoir be most expected to rise?
- A. A new factory that uses a lot of water opens in the town.
- B. The community's population grows rapidly over a short period.
- C. The area experiences a prolonged period of above-average rainfall.
- D. The pipes that draw water from the reservoir are upgraded to be larger.
4. In the context of a reservoir's water balance, what is the best example of 'outflow'?
- A. Water from melting snow on nearby mountains.
- B. Rainwater that falls directly into the lake.
- C. Water drawn by the community for homes and businesses.
- D. Water entering the reservoir from an underground spring.
5. A water shortage is most likely to occur in a community's reservoir when which of the following is true?
- A. The amount of rainfall is exactly equal to the amount of water the community uses.
- B. Heavy rainfall and increased river flow significantly raise the water level.
- C. The community's water usage is consistently greater than the supply from rain and rivers.
- D. The reservoir is a large, natural lake with multiple rivers flowing into it.
6. Using water from a tap to wash dishes is an example of what type of water use?
- A. Indirect use
- B. Agricultural use
- C. Direct use
- D. Industrial use
7. Which of the following activities contributes to your *indirect* water footprint?
- A. Taking a shower in the morning.
- B. Watering your houseplants.
- C. Buying a new cotton t-shirt.
- D. Filling a swimming pool.
8. Which of the following best defines a person's 'water footprint'?
- A. The amount of water a person drinks each day.
- B. The total volume of direct and indirect water used to support a person's lifestyle and consumption.
- C. The quantity of water used by factories in a person's local area.
- D. The measurement of water lost to evaporation from local reservoirs.
9. What is a primary consequence of a community having a large and growing water footprint?
- A. An increase in the price of bottled water.
- B. A decrease in the frequency of acid rain.
- C. Increased pressure and potential depletion of local water sources like rivers and aquifers.
- D. An improvement in local water quality due to higher flow rates.
10. How does the manufacturing of a product like a car contribute to a water footprint?
- A. The final product is designed to be washed with water.
- B. Water is consumed during the mining of metals and the factory's production processes.
- C. The electricity used to power the car is generated with water.
- D. Consumers drink water while driving their cars.