click below
click below
Normal Size Small Size show me how
Energy
Term | Definition |
---|---|
Renewable resources | materials from the earth that people use that can be replaced relatively quickly |
Nonrenewable resources | materials from the earth that people use that can not be replaced |
Inexhaustible resources | materials that cant be used up by human activity |
Fossil fuels | a fuel formed from the decay if ancient forms of life |
Alternative energy sources | a source of energy other than the burning of a fossil fuel |
Nuclear energy | energy from inside the nucleus of an atom |
Geothermal energy | heat from below the Earth's surface |
Hydroelectricity | electricity generated by running water |
Pollution | a harmful change to the environment |
Smog | a mixture of smoke and fog, formed when smoke and fumes collect in moist, calm air |
Acid rain | acid that is formed when the sulfur and nitrogen gases by burning fossil fuels combine with water vapor in the air then fall to earth as rain |
Thermal pollution | the addition of warm water into a stream or lake that is normally cold |
Monetary costs | the cash value of energy use;examples include the cost of heating a home or the large amount of money used to clean up an oil spill |
Nonmonetary cost | the environmental consequences of energy use; examples include the generation of pollution and long-term health problems caused for people |
Cost effectiveness | a measure determined by comparing the costs and the consequences of different ways of doing something |
Conservation | saving, protecting, or using natural resources wisely |
Biomass | resource that comes from living, or recently living organisms |
Hydrogen fuel | hydrogen gas burned as an energy source |
Reduce | To use less of something |
Reuse | To use something again |
Recycle | To make new materials out of old objects or materials |