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22 Cards in this Set
- Front
- Back
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natural resources |
anything that occurs naturally in the environment and is used by people |
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pollution |
the contamination of Earth's land, water, or air |
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point source |
specific pollution source that can be identified |
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non-point source |
widely spread and cannot be tied to a specific origin |
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enviromental science |
study of natural processes in the environment and how it can affect them |
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renewable resource |
always available and is naturally replaces in a relatively short time |
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nonrenweable resource |
resources that are not replaced in a useful timeframe |
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sustainable resource |
using resources in a ways that maintain the resource of 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 absorb waste they produce |
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conservation |
the practice of managing the use of resources wisely so the resources last longer |
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exponential growth |
occurs when population grows at an ever-increasing rate |
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biodiversity |
variety of different types of life found on Earth and variations within species |
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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 determine a trait and is passed from parents 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 a natural habitat |
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habitat fragment |
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 |
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niche |
a shallow recess |
