Energy

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Across
  1. 1. energy from water
  2. 3. unattractive
  3. 4. garbage
  4. 5. not inexpensive
  5. 6. hydropower source example
  6. 7. oldest source of renewable energy
  7. 9. not complicated
  8. 11. first
  9. 14. connected to water
  10. 15. never runs out
Down
  1. 2. in the sea
  2. 3. everywhere, or everybody
  3. 8. southernmost European country
  4. 10. made us of
  5. 12. ocean in the middle of the ring of fire
  6. 13. without stopping