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12 Cards in this Set
- Front
- Back
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irrigation
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the system to move water to farm lands to give water for crops
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nonpoint source pollution
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pollution whose source is hard to find or is scattered
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concentration
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the amount of substance thats in another substance
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aquaculture
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the science and business of raising and harvesting of fish in a controlled situation
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dam
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a structure that holds back and controls the flow of water in a river
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septic system
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a small waste water system used by a home or a business
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sewage system
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collects and treats huge amounts of waste water from a city or a town
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desalination
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the process of removing salt form ocean water
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drought
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a long period of abnormally low rain fall
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lock
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a section of waterway, closed off by gates, in which ships are raised or lowered by raising or lowering the water level of that section
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point source pollution
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pollution that enters water from a known source
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ground water
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water that is absorbed into the ground providing nutrients for plants
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