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7th Topic 6

TermDefinition
Pollution Contamination of Earth’s land, water, or air.
Point Source a specific source of pollution that can be identified
Nonpoint Source a widely spread source of pollution that is difficult to link to a specific point of origin
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
Primary main, top-ranking
Natural resource anything naturally occurring 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 in a certain quantity or amount for a certain period of time
Resource something found in nature that enhances the lives of plants, animals, and humans
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
Distributed divided among; passed out or spread out
Created by: tori.carmichael
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