Infinitives

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Across
  1. 2. trees
  2. 5. rubbish
  3. 7. dirty
  4. 8. clean
  5. 10. heating
  6. 13. worst
  7. 16. turnoffthelight
Down
  1. 1. birds
  2. 3. neighbourhood
  3. 4. good
  4. 6. save
  5. 9. destroyed
  6. 11. climatechange
  7. 12. environment
  8. 14. polluted
  9. 15. help