Climate & Natural Disasters

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Across
  1. 2. uppermost layer of branches
  2. 4. huge swampland
  3. 6. largest desert
  4. 7. underground water
  5. 8. unpopulated region
  6. 10. water comes to surface
  7. 11. tropical grassland covers most of continent
Down
  1. 1. cold, dry wind from the north
  2. 3. permanently frozen ground
  3. 5. located in northern china
  4. 6. hot, steady south wind
  5. 9. is a tropical storm