Underwater earthquakes and Tsunamis

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Across
  1. 3. What the word tsunami means: _________ wave
  2. 6. What causes tsunamis to happen
  3. 9. The country where most people died in 2004
  4. 10. Earthquakes and tsunamis are ______ disasters
  5. 11. This can travel at 500km/hr in a tsunami
  6. 12. What dirty water can make after a tsunami
Down
  1. 1. A word that means 'can never happen'
  2. 2. Equipment that can hear sounds under the sea
  3. 4. A country where two big tsunamis happened
  4. 5. An animal that becomes dangerous after a tsunami
  5. 7. A word that means 'below the water'
  6. 8. A type of plate under the ground