natural disasters

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Across
  1. 7. burning trees
  2. 8. not enough water
  3. 9. storm with high winds and heavy rain
Down
  1. 1. extremely long waves
  2. 2. narrow, violently rotating column of air
  3. 3. water everywhere
  4. 4. thunder and lightning
  5. 5. an intense shaking of Earth's surface
  6. 6. an explosion with lava