natural disasters

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Across
  1. 6. are collisions between astronomical objects
  2. 7. any large-scale movement of a mass of debris or rock down a slope
  3. 9. a giant wave caused by the movement of earth under
  4. 10. is a prolonged period of exceptionally high temperatures
Down
  1. 1. is an extended period of time drier than normal conditions
  2. 2. a big mountain that contains lava
  3. 3. occurs after heavy rainfall
  4. 4. when water accumulates and results in a surge of water-saturated rock, earth, and debris
  5. 5. a mass of ice and snow falling rapidly down a mountainside
  6. 8. the ground shaking and buildings collapsing