| A | B |
|---|
| Surface Water | fresh water that is above ground in lakes, ponds, rivers, and streams |
| watershed | entire area of land that is drained by a river |
| dams | water structures biult across a river or stream that prevents most of the water from traveling downstream |
| groundwater | water that seeps down through the soil and is stored underground |
| aquifers | rock formations underground in which water is stored |
| recharge zone | area of land from which the groundwater originates |
| desalinization | removing the salt from salt water |
| water pollution | introduction of chemical, physical, or biological material into water that degrades the quality of the water and effects the organisms that drink it and live in it. |
| point pollution | pollution that is discharged from a single source |
| nonpoint pollution | pollution that comes from many sources rather than from a single specific site. |
| bioaccumulation | accumulation of larger and larger amounts of a toxin within the tissues of organisms at each successive trophic level |
| artificial eutrophication | introduction of inorganic plant nutrients into a body of water through sewage and fertilizer runoff |
| thermal pollution | when excessive amounts of heat are added to a body of water |
| exclusive economic zone | the area that extends from a nation's land |
| territorial sea | an extension of 22 km from a nation's coastline |
| Law of the Sea Treaty | Made up in 1982 to clarify the situation of not knowing who has jurisdiction over the oceans |
| pathogens | disease causing organisms such as bacteria, viruses, and parasitic worms |
| waste water treatment plant | where water from industrial and residential areas is taken to be treated for its return back to a river or lake |
| physical agents | heat and suspended solids such as soil |
| radioactive waste | from power plants or nuclear processing and defense facilities |
