CONSERVATION VACATION

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Across
  1. 2. a sea mammal that looks like a dolphin
  2. 6. the fact that the natural environment of a plant/animal no longer exists
  3. 9. an abundant amount of
  4. 16. there are more important things in your life than money
  5. 17. a very small and narrow river
  6. 18. the act of making objects reusable
  7. 20. to turn organic waste into useful fertiliser
  8. 21. to change the usual or expected state or order of something in a way that stops it from happening or working:
  9. 22. A species in danger of becoming extinct in the near future
  10. 23. a protected area for wildlife
  11. 24. a short trip
  12. 25. a type of holiday where tourist stay with locals in villages
  13. 28. the construction of a barrier that surrounds an area
  14. 29. travel some distance between one's home and place of work on a regular basis.
  15. 31. unwanted substances left by manufacturing businesses
Down
  1. 1. move closer to
  2. 3. a cold-blooded animal, such a snake
  3. 4. all the way through, from first to last
  4. 5. a document confirming sth as eco-friendly
  5. 7. warm behaviour towards visitors
  6. 8. The systematic study of materials; an investigation
  7. 10. a greenfly
  8. 11. power generated by the Sun, wind, water which are never used up
  9. 12. the act of removing the dirt from a place
  10. 13. the act of observing sth; supervising
  11. 14. the act of observing very large sea mammals that breathe through a blowhole on their heads
  12. 15. to give sth away to people who need it
  13. 19. a plan for making and spending money
  14. 26. the brownish colour on the skin through exposure to the rays of the sun
  15. 27. able to meet the current demand for a resource without depleting the future supply
  16. 30. bulls and cows for farming