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12 Cards in this Set
- Front
- Back
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The main problem associated with the Ogallala Aquifer System is Ground water depletion Surface water depletion Subsidence Salt water intrusion Soil salinization |
Ground water depletion |
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Which of the following statements is FALSE about saltwater intrusion?
Saltwater can be made drinkable by a process called reverse osmosis Desalination can extract salt out of seawater with little to no environmental costs It is caused by nearby ground freshwater depletion It can be slowed down by using more efficient irrigation systems All of the above statements are correct |
Desalination can extract salt out of seawater with little to no environmental costs |
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The major use of surface waters in the U.S. is Industry Irrigation Domestic use Power generation All of the factors above use water in equal amounts |
Power Generation |
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The major use of groundwater waters in the U.S. is: Power generation Domestic use Irrigation Industry All of the factors above use water in equal amounts |
Irrigation |
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The formation of sinkholes due to groundwater depletion is known as Saltwater intrusion Soil salinization Reverse osmosis Subsidence Irrigation |
Subsidence |
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Which of the following is NOT a result of excessive ground water withdrawal? Drying up of wetlands Increased frequency of flooding of inland river banks Saltwater intrusion Land subsidence Falling water tables |
Increased frequency of flooding of inland river banks |
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The average U.S. resident uses about ________gallons of water each day.
500 100 1000 10 20 |
100 |
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Which of the following will NOT help you conserve water? All of the above will help you conserve water Using low-flow toilets, faucets, and showerheads Landscaping with native, drought-tolerant vegetation Eating beef daily Fixing leaky pipes |
Eating beef daily |
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All of the following are major concerns centered on water quantity, except: Depletion of aquifers almost everywhere in the world. Hydroelectricity production contamination of aquifers Land subsidence. |
Hydroelectricity production |
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An economic obstacle to greater use of drip irrigation in the U.S. is that ______.
Irrigation water is often heavily subsidized by governments It has never been proven to work Drip irrigation does not reduce agricultural water consumption Water is too expensive It doesn't result in any greater crop yield |
Irrigation water is often heavily subsidized by governments
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Saltwater intrusion |
the movement of salt water into a freshwater aquifer |
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Subsidence
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The rock layers and topsoil resting above the aquifer collapse as the aquifer's water (and thus support) is removed. A "sinkhole" forms. Sinkholes can consume trees, homes, cars and highways as the land beneath subsides. |
