| A | B |
|---|
| solar energy | Energy from the sun |
| wind farm | Many windmills generating energy |
| geothermal | Energy from hot magma |
| oil | Thick, black liquid |
| nuclear | Energy from atomic reactions |
| recycling | old materials used to make new materials |
| nonrenewable | resources that cannot be replaced |
| ore | Mineral mined for a profit |
| hydroelectric energy | Electricity produced by waterpower |
| biomass | Energy made from wood, alcohol & garbage |
| coal | Most abundant fossil fuel |
| fossil fuels | Oil, natural gas, & coal |
| natural gas | Forms in a gaseous state |
| plankton | Decayed marine organisms to make oil |
| lignite | Soft brown coal made from peat |
