What are some examples of alternative energy resources?
Examples of alternative energy sources besides fossil fuels (coal, natural gas, oil) could include harnessing the power of the sun (solar), wind, waves (hydro), or the earth itself (geothermal). These energy sources are considered 'renewable' energy sources, as they will not run out.
Nuclear power is also considered 'renewable' as the earth contains a limited amount of nuclear fuel, but there is enough to last for thousands of years. So while this energy source will eventually run out, it won't be for a very long time. However, although nuclear power does not produce any atmospheric pollution, there is still the matter of disposing of the radioactive nuclear fuel safely.