| Vocabulary word |
 |
|
| definition |
 |
|
| resource |
any supply that will meet a need |
| renewable resource |
a resource that can be replaced in a reasonable amount of time |
| nonrenewable resource |
a resource that cannot be replaced on the time scale of human history |
| fossil fuel |
energy source formed from the remains of once living things from long ago |
| solar energy |
energy from sunlight |
| hydroelectric |
producing electricity by using the power of flowing water |
| geothermal |
energy produced by thermal energy inside of Earth |
| biomass |
remains of anything that lived recently |