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Human Impact on Ecosystems

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Term
Definition
Nonrenewable Resources   resources that are used faster than they form  
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Renewable Resources   resources that cannot be used up or can replenish themselves over time  
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Ecological footprint   the amount of land necessary to produce and maintain enough food and water, shelter, energy, and waste  
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Pollution   any undesirable factor that is added to the air, water, or soil  
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Smog   a type of air pollution caused by the interaction of sunlight with pollutants produced by fossil fuel emmision  
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Particulates   microscopic bits of dust, metal, and unburned fuel  
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Acid Rain   type of precipitation produced when pollutants in the water cycle cause rain pH to drop below normal levels  
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Greenhouse effect   occurs when carbon dioxide, water, and methane molecules absorb energy reradiated by Earth's surface and slow the release of this energy from Earth's atmosphere  
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Global warming   the trend of increasing global temperatures  
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Indicator species   the species that provides a sign of the quality of the ecosystems environmental conditions  
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Biomagnification   when a pollutant moves up the food chain as predators eat prey, accumulating in higher concentrations in the bodies of protectors  
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Habitat Fragmentation   when a barrier forms that prevents an organism from accessing its entire home range  
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Introduced species   any organism that was brought to an ecosystem as the result of human actions  
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Sustainable development   practice in which natural resources are used and managed in a way that meets current needs without hurting future generations  
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Umbrella species   its protection means a wide range of other species will also be protected  
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Created by: tuohybio1415
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