Available Water:
Sea water -97.5%
Freshwater- 2.5%
Surface Water-1%
Groundwater- 20%
Ice caps/Glaciers-79%
Three main uses of water:
1. Domestic (drinking, cooking, toilets)
2. Industrial (Electric power, producing paper)
3. Agricultural (irrigation, animals, crops)
Water pollution: Any chemical, biological or physical change in water quality that has a harfull affect on living organisms or makes water unsuitable for desired uses
Two types:
-Point source
Can be traced to a specific location
Ex) sewage or drain pipes, leaky gas tanks, ditchs
-Nonpoint source
Pollution that enters streams and waterways from a widespread area and cannot be traced to one particular site
Ex) agricultural, residential and industrial runoff, atmospheric deposition
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