Lista 18

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Across
  1. 5. recycling
  2. 7. nature
  3. 9. natural resource
  4. 13. public transportation
  5. 14. harmful chemical
  6. 15. heaven/sky
Down
  1. 1. waste
  2. 2. cardboard
  3. 3. ozone layer
  4. 4. jungle
  5. 6. fuel
  6. 8. earth/land
  7. 10. drought
  8. 11. forest
  9. 12. human beings