| A | B |
| Natural Resources | materials that people take from the natural environment to survive and to satisfy their needs |
| Renewable Resources | natural resources that the environment continues to supply and replace |
| Nonrenewable Resources | Resources that cannot be replaced once thay have been used |
| Fossil Fuels | most important mineral resources. Includes coal, oil, and natural gas. |
| Nuclear Energy | produced by fission-the splitting of uranium atoms in a nuclear reactor to release their stored energy |
| Geothermal Energy | energy that comes from the earth's internal heat |
| Solar Energy | energy produced by the sun |
| Recycling | a way to reuse nonrenewable resources |