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30 Cards in this Set
- Front
- Back
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What are the main types of environmental issues?
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Resource, Population Growth, Pollution
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What is environmental science?
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the study of natural processes that occur in the environment and how humans effect then
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How do decision makers balance different needs and concerns?
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you have to look at many peoples viewpoints, and use conservation, development, and preservation.
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Renewable Resources?
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naturally replaced in a relatively short period time.
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Non-renewable Resources?
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are not replaced, gone
ex: coal, oil, and gas. |
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Pollution?
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a change to the environment that has a negative effect on living things.
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Developmental viewpoint?
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the be able to freely use and benefit from the earths resources.
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Preservation viewpoint?
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the belief that all parts of the environment are equally important.
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Conservation viewpoint
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the belief that people should use the resources if they take care of them.
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How can forest and fisheries be managed?
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limits can be imposed they can also outlaw poison and killing them, use larger nets.
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Clear Cutting?
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process of cutting down all the trees in one area with none remaining.
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Selective Cutting?
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cutting down only some trees depending on size and shape.
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Sustainable yield?
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The sustainable yield of renewable natural resources is traditionally defined as the extraction level of the resource which does not exceed the growth.
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Fishery?
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the industry of catching fish and selling them for business.
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Aquaculture?
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the art of cultivating or fresh water food.
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Biodiversity?
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the # of different species in an area.
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Keystone Species?
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influences the survival of many other species in an ecosystem.
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Genes?
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the stuff in the cell that carries hereditary info.
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Extinction?
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the disappearance of species from earth.
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Endangered Species?
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in danger of becoming EXTINCT
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Threatened Species?
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could become endangered in the near future.
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Habitat destruction?
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loss of natural habitat.
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Habitat fragmentation?
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breaking larger habitats into little fragments.
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Poaching?
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illegal killing or removal of wildlife species.
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Captive Breeding?
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mating of animals in a zoo.
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why are many rain forest plants sources of medicine?
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some chemicals rain offsets produce protect their leaves.
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Taxol?
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unusual crystal on bark.
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What factors affect an areas biodivirsity?
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area, climate, niches.
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Which human activities threaten biodiversity?
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population growth.
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how can biodiversity be protected?
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Captive breeding
Habitat preservation Laws |
