Energy Sources

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Across
  1. 3. Energy from tides
  2. 6. Heat energy from the Earth's interior
  3. 9. Gas used as a cleaner fossil fuel
  4. 10. Energy from the sun
  5. 12. Liquid fossil fuel used as fuel.
  6. 13. Energy from burning coal
  7. 14. Energy from flowing rivers
Down
  1. 1. Fuel from ancient plant matter
  2. 2. Fuel derived from plants or animals
  3. 4. Energy from waves
  4. 5. Power generated by falling water
  5. 7. Power from moving water
  6. 8. Renewable fuel made from organic materials
  7. 9. Energy from splitting atoms
  8. 11. Energy from the wind