Problem 3
Explain the differences among water use, water withdrawal, and water consumption.
Problem 4
Why is agriculture responsible for the greatest proportion of water consumption?
Problem 5
What are the two main sources of water exploited by water-diversion projects?
Problem 6
Describe the beneficial effects of dams and their associated water-delivery systems.
Problem 7
Describe the negative effects of dams and their associated water delivery systems.
Problem 8
Why does salinization commonly result from desert irrigation?
Problem 9
Describe the factors that make ground water a valuable resource.
Problem 10
Describe problems caused by excessive pumping of ground water.
Problem 11
Why does ground water depletion cause longerterm problems than might result from the draining of a surface reservoir?
Problem 12
If land subsides when an underlying aquifer is depleted, will it rise to its original level when pumping stops and the aquifer is recharged? Explain your answer.
