Human Impact on Ecosystems
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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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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