Avancemos 3 unit 3 lesson 1

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Across
  1. 3. green house effect
  2. 4. deforestation
  3. 11. pollution
  4. 12. erosion
  5. 14. invention
  6. 15. complex
Down
  1. 1. landslide
  2. 2. development
  3. 5. climate
  4. 6. future
  5. 7. clean air
  6. 8. biodiversity
  7. 9. ozone layer
  8. 10. garbage container
  9. 13. innovation