Natural disasters

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Across
  1. 5. a great lack or shortage, especially of food
  2. 6. an event of prolonged shortages in the water supply, whether atmospheric, surface water or ground water
  3. 8. a fast rotating column of air extending from a cloud to the ground
  4. 10. a fall of snow and ice down a mountain
  5. 11. an overflowing of a large amount of water over land
  6. 12. large long-period sea waves caused by fault movements and volcanic eruptions
Down
  1. 1. a storm with wind over 75 mph, usually having a lot of rain and lightning
  2. 2. an event or process that destroys life and/or property
  3. 3. downward falling of a mass of soil or rock from a steep slope
  4. 4. a vent in Earth's surface where ash and hot liquid rock can come out
  5. 7. a large destructive fire that spreads quickly over woodland or bush
  6. 9. a sudden and violent shaking of the ground