| Term | Definition |
|---|
| surface water | frsh water on Earth's land surface |
| river system | as streams and rivers move across the surface, they form ???? |
| water shed | the area of land that is drained by a river |
| groundwater | water that is stored beneath the earth's sruface in sediment and rocks |
| aquifer | an underground formation that contains groundwater |
| Porosity | the amount space between particles in rocks |
| permeability | the ability of rocks or soil to allow water to pass through |
| recharge zone | the area of earth's surface where water percolates down into the aquifer |
| potable | means water is safe to drink |
| pathogens | organisms that cause disease or illness |
| irrigation | method of provding plants with water from sources other than direct precipitation |
| dam | a structure built across a river to control the river's flow |
| reservoir | an artifical lake behind a dam |
| desalination | process by which salt is removed from salt water |
| water pollution | the introduction of chemical. physical or biological agents into water that degrade water quality |
| point source pollution | single source of pollution discharge |
| nonpoint source pollution | pollution that comes from many different sources |
| wastewater | water that contain waste from homes or industries |
| artificial eutrophication | eutrophication caused by humans |
| thermal pollution | when the temperature of a body of water rises to a point that it can not maintain life |
| biomagnification | the accumulation of pollutants at successive levels fo the food chain |
Combine with other sets
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