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| Frage | Antworten |
| Heat inside Earth can provide | geothermal energy |
| To change sunlight into electricity to power a home, people use devices called | solar cells |
| After a magazine has been read, it could be , to save space in landfills | recycled |
| Plant and animal wastes that can be processed to make fuel are called | biomass |
| Metal spoons reduce the amount of waste because they allow | reuse |
| produce more waste when you use products that are | disposible |
| Many dams use water power to produce | hydroelectricity |
| If you keep your house colder in the winter and wear a sweater, you will air pollution and conserve a nonrenewable resource. | reduce |
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