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PHS4
Chapter 4 Earth's Resources
| Question | Answer |
|---|---|
| renewable resources | a resource that is virtually inexhaustible or that can be replenished over relatively short time spans |
| nonrenewable resources | a resource that takes millions of years to form |
| fossil fuel | General term for any hydrocarbon that may be used as a fuel, including coal, oil, and natural gas |
| ore | a material from which a useful mineral or minerals can be mined at a profit |
| hydroelectric power | the power generated by falling water - the water makes turbines spin and produces power |
| geothermal energy | Energy that can be extracted from Earth's internal heat, for example, natural steam used for power generation. |
| point source pollution | water pollution that comes from a known and specific location |
| nonpoint source pollution | water pollution that does not have a specific point of origin |
| runoff | water that flows over the land surface rather than seeping into the ground |
| global warming | The increase in average temperatures of Earth and the atmosphere due in part to increased carbon dioxide levels |
| conservation | The careful use of resources |
| compost | Partly decomposed organic material that is used as fertilizer. |
| recycling | The collecting and processing of used items so they can be made into new products. |
Created by:
melaniebird
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