crossword

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Across
  1. 2. greenhouse effect
  2. 3. coniferous tree
  3. 4. sewage
  4. 5. lowland
  5. 6. erosion
  6. 7. drought
  7. 8. lake
  8. 11. lämpeneminen global warming
  9. 13. tsunami
  10. 14. fertile
  11. 15. climate change
Down
  1. 1. biodegradable
  2. 3. tropical storm, hurricane, cyclone, typhoon
  3. 4. river
  4. 6. habitat
  5. 9. desertification
  6. 10. recycle
  7. 12. irrigation