Earth’s Energy Sources Uncovered is a medium crossword puzzle with 16 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Earth’s Energy Sources Uncovered
Moderate difficulty suitable for most players
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Across
- 1. Energy harnessed directly from the sun
- 2. A natural spring that emits hot water or steam
- 3. Partially decayed plant matter used as a fuel in some regions
- 5. Radioactive element used in nuclear energy
- 8. Alcohol-based fuel derived from plants
- 9. Common abbreviation for a fossil fuel used for heating and cooking
- 10. SAND Sedimentary deposit rich in bitumen, used as unconventional oil
- 12. A gas component of natural gas, used as fuel and chemical feedstock
- 14. Renewable energy created by moving air
Down
- 4. Power generated using flowing or falling water
- 6. Material discarded which can sometimes be used for energy
- 7. The process of making energy sources sustainable
- 11. Gas produced by decomposing organic waste
- 13. Machine that converts fluid flow into mechanical energy
- 15. A black sedimentary rock used as fuel
- 16. Type of fuel formed from ancient organic matter
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