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27 Cards in this Set
- Front
- Back
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a long period of abnormally low rainfall
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drought
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pollution whose source is hard to find or is scattered
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nonpoint source pollution
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a section of waterway, closed off by gates in which ships are raised or lowered by raising or lowering water level of that section
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lock
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the science and buisness of fishing in a controlled situation
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aquaculture
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the amount of a substance that is in another substance
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concentration
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a structure that holds back and controls the flow of water in a river
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dam
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collects and treats huge amounts of wastewater from from a city or town
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sewage system
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the process of removing salt from ocean water
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desalination
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a small wastewater system used by a home or a buisness
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spetic system
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pollution that enters water from a known source
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point source pollution
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the process of supplying water to grow crops
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irrigation
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what happens in the first step to treating water
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the water flows through mixers
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what happens in the second step to treating water
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heavy lumps sink to bottom
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what happens in the third step to treating water
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flows through layers of different minerals
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what happens in the fourth step to treating water
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chlorine is added to water
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what system is used for smaller towns?
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septic system
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which system is used for larger towns
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sewage system
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what are 4 ways that water is used in human activities
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farming, industry, transportation, and recreation
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what is the major use of water globally?
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agriculture
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what are 2 ways that water is a unique substance
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can be a solid liquid or gas at earths surface; is a universal solvent
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without water a human cannot live for more than....
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a few days
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describe how a nuclear power plant works
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heats aviatar which makes steam to turn turbines
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describe how a coal power plant works
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burn coal to heat to make water steam to turn turbines
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describe how a hydroelectric plant works
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uses energy of falling water rushing through turbines to turn turbines
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the layer of rock through which water can move below surface
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aquafer
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layer of rock through which water cant move trough
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aquatard
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2 things that determines how fast a liquid moves through a solid
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-size of pore spaces
-amount of liquid |
