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Human Impact

How human activities have a negative effect on our environment

TermDefinition
point source A specific , identifiable pollution source.
nonpoint source Pollution is wide spread and cannot be tied to a specific origin ( where it started)
emissions Pollutants that are released into the air.
ozone A form of oxygen that has three oxygen atoms in each molecule instead of the usual two; toxic to organisms where it forms near Earth's surface.
acid rain Rain or another form of precipitation that is more acidic than normal, caused by the release of molecules of sulfur dioxide and nitrogen oxide into the air.
sewage The water and human wastes that are washed down sinks, toilets, and showers.
sediment Small, solid pieces of material that come from rocks or the remains of organisms; earth materials deposited by erosion.
thermal pollution A type of pollution caused by factories and power plants releasing superheated water into bodies of water.
natural resource Anything naturally occuring in the environment that humans use.
renewable resource A resource that is either always available or is naturally replaced in a relatively short time.
nonrenewable resource A natural resource that is not replaced in a useful time frame.
deforestation The removal of forests to use the land for other reasons.
erosion The process by which water, ice, wind, or gravity moves weathered particles of rock and soil.
desertification The advance of desert-like conditions into areas that previously were fertile; caused by overfarming, overgrazing, drought, and climate change.
sustainable Using a resource in ways that maintain it at a certain quality for a certain period of time.
Created by: Lisa.Huss
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