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science
| Term | Definition |
|---|---|
| coal | a fossil fuel that forms from decomposed plant materials |
| energy | the ability to do work or cause change; can be changed into different forms and can move between objects |
| fossil fuels | Fossil fuels come from the decay of organisms buried in sediments that are pressed tightly together for millions of years, at very high temperatures. |
| generator | a machine that converts mechanical energy into electrical energy |
| global warming | the slow warming of Earth's atmosphere due to climatic change |
| natural gas | fossil fuel that exists in the form of a gas: Like all fossil fuels, natural gas formed over many millions of years as ancient dead organisms were gradually compressed and heated deep under Earth’s surface |
| renewable resources | a natural resource that can be replaced |