virginia watersheds
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each of the black spaces below before clicking
on it to display the answer.
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| tributary | a stream or river that supplies water to a larger body of water
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| river system | the main river and its tributary
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| watershed | the land area that supplies water to a river
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| divide | a rigde of land that seperates the direction that water flows
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| continental divide | rocky mountains
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| estuary | a partlliy enclosed body of water where fresh water mixes with salty ocean water
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| brackish | a mixture of salt and fresh water
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| salinity | the amount of salt the water
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| wetland | a habitat that is covered in water most of the time
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| swamp | type of wetland with tall twisted trees
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| marsh | type of wetland with reeds and grasses
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| bogg | type of wetland with thick peat
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| ecosystem | the living and nonliving part of a community
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| habitat | the place of where a animale or plant live
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| largets watershied in usa | mississippi river
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| largest estuary in the usa | chesapeake bay
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| point source of pollution | comes froms a pirticiluar location such as a factory or pipe
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| non-point source pollution | comes from multiply sources like farms and roads
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| dangers to wetland and estuary | pollution and construction
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| va rivers that lead to the chesapeak bay | potamac rappahannock york james
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| va rivers that connect to mississippi river | ohio new
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| va rivers that lead to Albemarie sound | roanoke chowan
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| watersheds on the eastern shore of va | chesapeake bay and atlantic ocean
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| biotic | living things such as plants and animals
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| abiotic | nonliving things such as sunlight air and water
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| types of estuaries | bay lagoon harbor sound inlet
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| jobs of estuaries | recreation, habitat for aquatic organsims, source of food, nursey for young animals
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| jobs of wetlands | filter water, protect land from flooding, habitiat for birds
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| nutrient pollution | caused algae to grow which blocks sunlight and lowers oxygen levels under water so organisms die
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| examples of point source pollution | oil spills, sewage dumped into a river
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| ex. of nonpoint source pollution | runoff from farms and streets, erosion
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| river | fresh water that begins in the mountains, flows downhill, and ends in the ocean.
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