Our Environment & Pollution

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Across
  1. 3. Used for producing batteries (7)
  2. 5. abundant source of energy (5)
  3. 6. Mix of this & petrol makes fuel better (7)
  4. 7. example of green house gas (7)
  5. 8. used to purify water (6)
  6. 13. example of a clean gas
  7. 15. heat from inside of earth (10)
  8. 16. this ocean had the largest oil spill (8)
  9. 17. another word for reuse (7)
  10. 19. 7 letter word for green energy
Down
  1. 1. #1 cause of pollution today (7)
  2. 2. source of emission from agriculture (6)
  3. 4. water release when the glacier melts (9)
  4. 5. waster water from domestic usage (6)
  5. 9. technology of tomorrow (8)
  6. 10. gas used in air conditioners (5)
  7. 11. used for keeping swimming pools clean (8)
  8. 12. a dangerous contaminant in ground water (4)
  9. 14. one of the biggest holes in atmosphere (5)
  10. 18. burning this causes pollution (4)