| A | B |
|---|
| Surface water | is fresh water that is above ground in lakes |
| Water shed | entire area of land that drains into the river. |
| Dams | is a structure built across a river or stream that prevents most of the water from traveling downstream. |
| Aquifers | are underground rock formation that hold water |
| Ground Water | water that seeps down through the soil and is stored underground |
| Recharge Zone | are of land on Earth's surface which groundwater originates |
| Desalinization | salt is removed from salt water as from oceans |
| Distillation | used to evaporate fresh water from salt water |
| Reverse Asmosis | used to puch the water through a semipermable membrane that will not permit the salt to pass |
| Water Pollution | the introdution of chemical, physical, or biological material into water that degrates the quality of the water and affects the orginisms that drinks it and live in it |
| Point Pollution | discharge from single source |
| Nonpoint Pollution | comes from many sources rather than from a specific site |
| Bioaccumulation | biomagnification |
| Artifical eutrophication | eutrophication caused by humans |
| Thermal Pollution | excessive amts of heat are added to a body of water |
| Algalballoms | are caused by high level of phosphates in the water |
| CWA | clean water act |
| Oil Spills | can contamenate ocean water |
| Fecal Coliform Test | used to test for these bacteria |
| Escherichia coli | common type of human intestinal bacteria |
| Pathogens | disease-causing organisms such as bacteria |
| organic matter | biodegradable ramains of animals and plants |
| inorganic chemicals | acids, salts, toxic metals: from both point and nonpoint sources |
| physical agents | heat adn suspended solids such as soil |
| radioactive waste | from power plants or nuclear processing and defense facilities |
