Water+Pollution+Multiple+choice+Practice+questions

Name: ______________________ ID: A
____ 133. The largest producer of freshwater from seawater is
a. the United States
b. Saudi Arabia
c. Israel
d. China
e. Egypt
____ 134. It is most economically and environmentally sound to focus water resource management on
a. increasing the water supply.
b. controlling the "mining" of groundwater.
c. increasing the efficiency of the way we use water.
d. developing desalination plants.
e. cloud seeding and towing icebergs to arid regions.
____ 135. Approaches to increasing the water supply can be outstripped by
a. increased industrialization.
b. soaring population.
c. increased food needs.
d. All of these answers.
e. None of these answers.
____ 136. All of the following are advantages to using drip irrigation systems except that they
a. reduce soil salinization
b. maximize water input reaching crops
c. are very costly
d. cannot be moved around
e. increase crop yields over conventional systems
____ 137. In the United States, the single largest use of the domestic water supply is
a. washing dishes
b. bathing and showering
c. watering lawns
d. washing clothes
e. flushing toilets
____ 138. Which U. S. city reduced its water use by 31% from 1987 to 2004 through repairing leaks,
retrofitting homes with efficient toilets and showerheads, conducting water audits of industries, better
water metering, and public education?
a. Los Angeles
b. Boston
c. New York
d. San Francisco
e. Washington DC.
____ 139. World Resources Institute estimates that ____ of the water people use throughout the world is wasted
through evaporation, leaks, and other losses.
a. 25−30%
b. 45−50%
c. 65−70%
d. 75−80%
e. 78−90%
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