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22 Cards in this Set
- Front
- Back
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natural resource |
anything naturally occuring in the enviroment that humans use |
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pollution |
contammination of Earth's land, water, or air |
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point source |
a specific source of pollution that can be identified |
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nonpoint source |
a widely spread source of pollution that is difficult to link to a specific point of origin |
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enviromental science |
the study of the natural processes that occur in the enviroment and how humans can affect them |
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renewable resource |
a resource that is either always available or is naturally replaced in a relatively short time |
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nonrenewable resource |
a natural resource that is not replaced in a useful time frame
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sustainable use |
the use of a resource in ways that maintain the resource at a certain quality for a certain period of time
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ecological footprint |
the amount of land and water that individuals use to meet their resource needs and to absorb the wastes that they produce
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conservation |
the practice of using less of a resource so that it can last longer
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expotential growth |
growth pattern in which individuals in a population reproduce at a constant rate, so that the larger a population gets, the faster it grows
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sustainable yield |
an amount of renewable resource that can be harvested regularly without reducing the future supply
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biodiversity |
the total number of different species on Earth, including those on land, in the water, and in the air
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keystone species |
a species that influences the survival of many other species in an ecosystem
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gene |
a sequence of DNA that determines a trait and is passed from parent to offspring
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extinction |
the disappearance of all members of a species from Earth
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endangered species |
a species in danger of becoming extinct in the near future
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threatened species |
a species that could become endangered in the near future
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habitat destruction |
the loss of natural habitat
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habitat fragmentation |
the breaking of a habitat into smaller, isolated pieces |
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poaching |
illegal killing or removal of wildlife from their habitats |
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captive breeding |
the mating of animals in zoos or wildlife preserves |
