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Chapter 4
Earths Resources
| Term | Definition |
|---|---|
| Renewable Resource | a resource that is virtually inexhaustible or that can be replenished over a relatively short time span |
| Nonrenewable resource | Resource that takes millions of years to form |
| Fossil fuel | A carbon-containing fuel that formed over millions of years from the remains of living things |
| Ore | A material from which a useful mineral or minerals can be mined at a profit |
| Hydroelectric Power | The power generated by falling water |
| 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 Climate Change | The increase in average temperatures of the atmosphere, along with the climate changes that have resulted from it, due in part to increased carbon dioxide levels |
| Conservation | The careful use of resources |
| Compost | A 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. |
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