Environment protection

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Across
  1. 2. save
  2. 7. destroy
  3. 9. to get dirty
  4. 10. refresh
  5. 12. annoy
  6. 13. opened
Down
  1. 1. turn on
  2. 3. leave
  3. 4. keep
  4. 5. darkness
  5. 6. reduce
  6. 7. pause
  7. 8. small group
  8. 11. increase
  9. 14. take off