science vocab
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| surface water | water that collects on the surface
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| ground water | water that collects underground
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| wetlands | land consisting of marshes and swamps
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| intertidal zone | an area above water at low tide and underwater at high tide
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| hydrosphere | all the waters on the earths surface
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| aquifer | a body of permeable rock that can contain or transmit groundwater
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| watershed | an area or ridge of land that separates waters flowing to different rivers, basins, or seas
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| estuary | the tidal mouth of a large river, where the tide meets the stream
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| upwelling | a rising of seawater
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| downwelling | the downward movement of seawater
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| chemosynthesis | the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight
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| coral reef | a ridge of rock in the sea formed by the growth and deposit of coral.
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| kelp forest | The kelp forest is a forest, but it is not a forest of trees. It is made of seaweed called giant kelp. Giant kelp grows in cool coastal waters where sunlight can go down to a rocky sea floor. Kelp needs sunlight in order to grow
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| phytoplankton | plankton consisting of microscopic plants
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| Hydrothermal vent | an opening in the sea floor out of which heated mineral-rich water flows
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| turbidity | Turbidity is a measure of water clarity how much the material suspended in water decreases the passage of light through the water. Suspended materials include soil particles (clay, silt, and sand), algae, plankton, microbes, and other substances
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| eutrophication | excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen
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| bioindicators | an organism whose status in an ecosystem is analyzed as an indication of the ecosystems health
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| point source pollution | Point source pollution, on the most basic level, is water pollution that comes from a single, discrete place, typically a pipe
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| non point source pollution | comes from many diffuse sources
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| micro organisms | a microscopic organism
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| overfishing | deplete the stock of fish in a body of water by fishing too much
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| stewardship | the management or care of something, particularly the kind that works
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| clean water act | the primary federal law in the United States governing water pollution
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| safe drinking act | the principal federal law in the United States intended to ensure safe drinking water for the public
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