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Resources/Pollution
| Term | Definition |
|---|---|
| Nonrenewable resources | resources that exist in a limited amount and cannot be replaced or replenished as quickly as it’s used; include fossil fuels and nuclear energy |
| Fossil fuels | energy-rich resources made from the preserved remains of organisms |
| Nuclear fission | the splitting of an atom’s nucleus to release a great deal of energy |
| Renewable resources | resources that are always available or are naturally replaced in a relatively short time |
| Mineral | a non-living solid substance made from a combination of elements |
| Point source | a specific source of pollution that can be identified |
| Nonpoint source: | a widely spread source of pollution that is difficult to link to a specific point of origin |
| Birth rate | the number of births per 1000 individuals for a certain time period. |
| Death rate | the number of deaths per 1000 individuals for a certain time period. |
| Exponential growth | a rate of change that increases more and more rapidly over time |
| Overpopulation | When the number of humans grows beyond the available resources |
| Conservation | The practice of using fewer resources so that they can last longer |
| Sustainable use | the practice of using resources in such a way that they will continue to be available in the future. |
| Agriculture | using land to produce food |
| Desertification | the advance of desert-like conditions into areas that were previously fertile; caused by over farming |
| Deforestation | the removal of forests/trees to use the land for other reasons. |
| Fracking | a process used to extract oil and natural gas from deep underground shale rock formation |
| Emissions | pollutants that are pumped out of man-made structures/objects into the air |
| Acid rain | formed by the release of sulfur dioxide and nitrogen oxides from burning fossil fuels, which mix with water to make acids |
| Smog | forms when pollutants react with sunlight, forming a thick, brownish haze that hovers over a city |
| Ozone layer | a layer of ozone that acts as a shield to protect living things from too much ultraviolet (UV) radiation from the sun |
| natural resource | resources used by humans that occur naturally in the environment. |