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living resources
| Question | Answer |
|---|---|
| natural resources | anything in the environment used by people |
| renewable resources | resources naturally replaced in a short period of time |
| nonrenewable resources | can't be replaced |
| pollution | contamination of the earths land, water, and air |
| environmental science | the study of natural process in the environment and how humans affect them |
| clear-cutting | process of cutting down all trees in an area at once |
| selective cutting | cutting down only some trees in an area and leaving a mix of trees |
| sustainable yield | is an amount of renewable resources such as trees that can be harvested regularly without reducing the future supply |
| fishery | an area with a large population of valuable ocean organisms |
| aquaculture | the practice of raising fish and other water dwelling organisms for food |
| biodiversity | the number of different species in an area |
| keystone species | a species that influences the survival of many other species in a ecosystem |
| genes | the structures in an organism's cells that carry its hereditary information |
| extinction | the disappearance of all members of a species from earth |
| endangered species | species in danger of becoming extinct in the near future |
| threatened species | species that could be endangered in the near future |
| habitat destruction | the loss of natural habitat |
| habitat fragmentation | breaking larger habitats into smaller isolated pieces, or fragments |
| poaching | the illegal killing or removal of wildlife from their habitat |
| captive breeding | the mating of animals in zoos or wildlife preserves |
Created by:
thanna
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