Happy New Year!

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Across
  1. 2. (adj.) dangerous (5)
  2. 6. (adj.) strange (4)
  3. 9. (v./n.) make something happen (5)
  4. 15. (v.) change completely (9)
  5. 18. (n.) ten-year period (6)
  6. 20. (n.) something that has been designed or created for the first time (9)
  7. 22. (n.) when you stop working at a certain age (e.g. 65) (10)
  8. 26. (n.) what happens when the water level gets too high (8)
  9. 27. (n.) result (11)
  10. 29. (n.) the area an animal lives in (7)
  11. 30. (n.) informal name used by family and friends (8)
  12. 32. (n.) sense of ______________ - the ability to find things funny (6)
  13. 33. (n.) what happens when lots of trees are cut down (13)
  14. 35. (n.) a strong feeling of liking something (7)
  15. 38. (n.) animals that live in nature (8)
  16. 39. (adj.) uncomfortable due to lack of space (7)
  17. 41. (n.) a particular type of animal or plant (7)
  18. 43. (adj.) a positive word meaning 'thin' (4)
  19. 44. (adj.) with no hair on the head (4)
Down
  1. 1. (adj.) describing the countryside (5)
  2. 3. (n.) a place to live outside the city centre (7)
  3. 4. (adj.) loud (5)
  4. 5. (n.) living things connected by who eats whom (4,4)
  5. 7. (adj.) amazing (7)
  6. 8. (v./n.) when something becomes less in quantity, level etc.(7)
  7. 10. (n.) the way somebody looks (10)
  8. 11. (adj.) very good looking (8)
  9. 12. (v.) remove hair using a razor (5)
  10. 13. (adj.) when you feel shy or self-conscious (11)
  11. 14. (n.) all the typical food an animal eats (4)
  12. 16. (n.) environmental problem causing the earth to get hotter (6,7)
  13. 17. (v.) leave a job (6)
  14. 19. (n.) something you do that you feel proud of (11)
  15. 21. (n.) an animal that hunts and kills other animals (8)
  16. 23. (adj.) ____________ species - one that is dying out, or facing extinction (10)
  17. 24. (adj.) with lots of space (8)
  18. 25. (expr.) in a zoo, not in the wild (2,9)
  19. 28. (adj.) describing a town or city (5)
  20. 31. (n.) gas, coal, oil when used as energy (6,5)
  21. 34. (adj.) describing a building that is small, warm, and comfortable (4)
  22. 36. (v.) look up to (6)
  23. 37. (v.) get smaller (6)
  24. 40. (adv.) mostly (6)
  25. 42. (adj.) how you feel when you have achieved something (5)