Disasters!

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Across
  1. 4. worried
  2. 7. known for
  3. 9. pure or untouched
  4. 11. angrily
Down
  1. 1. frequent
  2. 2. smoke or vapor or gas
  3. 3. difficult
  4. 5. fall or rush
  5. 6. inactive
  6. 8. heavy
  7. 10. anger