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19 Cards in this Set
- Front
- Back
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true or false?
Water is not treated for drinking. |
false
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Overuse of undergrond water can cause an aquifer to be __________.
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depleted
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This pollutant is easy to spot, and laws can be enforced to stop it.
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point-source pollution
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true or false?
Pollutants contaminate the water supply. |
true
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This collects and treats water from the street drains and sewers.
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sewer system
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this is another possible sourse of fresh water; however, the process costs five times as much as normal water treatment.
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desalination
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these can destroy crops and dry up water supplies.
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drought
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A common method of this pours water into canals and waterways so that it flows through the fields.
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irrigation
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Because we're not exactly sure where this pollution comes from, so its hard to enforce laws against it.
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non-point source pollution
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this causes some problems because the fish farms can cause an excess of nutrients and pollution to flow into rivers and lakes.
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aquaculture
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these are used in rivers with dams, canals, and rivers that connect to lakes of different elevation.
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lock
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these are more common in lightly populated areas.
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septic system
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the amount of substance that is in another substance.
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concentration
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desalination
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the process of removing salt from ocean water.
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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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Name two ways that water is a unique substance
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it can be a solid, liquid and gas at earths surface, polar substance, and it is a universal solvent.
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Our bodies are more than _________ water.
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one-half
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Without water, a person cannot live for more than ____________.
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a few days
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Describe how nuclear power plants work.
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Nuclear power plants heat water, which makes steam to turn turbines.
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