Ch 5 Earth's Energy and Mineral Resources
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14 terms
Terms | Definitions |
|---|---|
 fossil fuels | are fuels such as coal, oil, and natural gas that form from the remains of plants and other organisms |
| coal | is a rock that contains at least 50% plant remains |
| oil | is a thick, black liquid |
| natural gas | forms under similar conditions and often with oil |
| reserve | amount of fossil fuel that can be extracted at a profit using current technology |
| nuclear energy | is an alternate energy source produced from atomic reactions |
| solar energy | is energy from the Sun energy heats Earth |
| wind farm | large numbers of windmills are placed in one area for the purpose of generating electricity |
| hydroelectic energy | electricity powered by waterpower |
| geothermal energy | energy obtained by using hot magma or hot, dry rocks inside Earth |
| biomass energy | is energy derived from burning organic material such as wood, alcohol, and garbage |
| mineral resource | is a deposit of useful materials |
| gangue | waste rock that must be removed before a mineral can be used |
| recycling | is using old materials to make new ones |
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