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