Geology - Ch. 5
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Created by:
scisltan10 on May 20, 2010
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12 terms
Terms | Definitions |
|---|---|
 natural resource | any energy source, organism, or substance found in nature that people use |
| renewable resource | an energy source that can be replaced in nature at about the same rate it is used |
| nonrenewable resource | an energy source that exists in a fixed amount or that is used up faster than it can be replaced in nature |
| fossil fuel | a nonrenewable energy source formed from ancient plants and animals that were buried in Earth's crust for millions of years |
| conservation | the process of protecting, restoring, and managing natural resources so they last as long as possible |
| recycling | the process of recovering materials that ordinarily would be thrown away |
| nuclear fission | the process of splitting the nucleus of an atom to release a huge amount of energy |
| hydroelectric energy | electricity produced by moving water |
| solar cell | a specifically constructed sandwich of silicon and other materials that uses sunlight as an energy source |
| geothermal energy | energy produced by heat within the Earth's crust |
| biomass | organic matter that can be used as fuel |
| hydrogen fuel cell | a device that produces electricity by combining hydrogen and oxygen |
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