Environment Ch 3 Living Resources
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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| renewable resources | natural resources that can be replaced in a relatively short time
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| nonrenewable resources | natural resources that are not replaced as they are used
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| examples of renewable resources | sunlight, wind, trees
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| examples of nonrenewable resources | coal and oil
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| pollution | any change to the environment that has a negative effect on living things
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| environmental science | the study of the natural processes that occur in the environment and how humans can affect them
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| development viewpoint | the belief that humans should be able to freely use and benefit from all Earth's resources
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| preservation viewpoint | the belief resources should be a source of beauty, comfort, and recreation; living things should not be disturbed for the benefit of people
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| conservation viewpoint | the belief that people should use resources for the environment as long as they don't destroy those resources; this view is the balance between development and preservation
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| clear-cutting | the process of cutting down all trees in an area at once
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| selective cutting | cutting down only some trees in a forest and leaving a mix of tree sizes and species
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| sustainable yield | a regular amount of a renewable resource that can be harvested without reducing the future supply
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| fishery | an area with a large population of valuable ocean resources
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| aquaculture | the practice of raising fish and other water-dwelling organisms for food
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| biodiversity | the number of different species in an area
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| keystone species | a species that influences the survival of many other species in an ecosystem
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| genes | structures in an organism's cells that carry its hereditary information
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| niche | an organism's particular role in an ecosystem, or how it makes it living
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| extinction | the disappearance of all members of a species from Earth
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| endangered species | species in danger of becoming extinct in the near future
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| threatened species | 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 fragmentation | breaking larger habitats into smaller, isolated pieces or fragments
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| poaching | the illegal killing or removal of wildlife species
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| captive breeding | the mating of animals in zoos or wildlife preserves to increase their number and chance for survival
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| taxol | the substance that protects the Pacific Yew tree and can be used as a medicine treatment for cancer
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Created by:
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