Types of natural disasters

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Across
  1. 1. Rapid flow of snow down a slope
  2. 4. Mountain that erupts with lava, ash, and gases
  3. 7. Violently rotating column of air extending from a thunderstorm to the ground
  4. 8. Rapid flow of mud and debris down a slope, often after heavy rain
  5. 11. Cracking of soil or rock caused by sudden freezing and expansion
  6. 12. Uncontrolled fire burning in forests or grasslands
  7. 14. Prolonged period of excessively hot weather
  8. 15. Overflow of water onto normally dry land
  9. 17. Rapid downward movement of rock, soil, and debris
  10. 18. Extended period of unusually low rainfall, leading to water shortage
Down
  1. 2. Rotating storm system, includes hurricanes and typhoons
  2. 3. Collapse of the ground surface due to underground erosion
  3. 5. Space rock that survives passage through Earth's atmosphere and hits the ground
  4. 6. Giant ocean wave triggered by an underwater earthquake or landslide
  5. 7. Severe storm with lightning, thunder, and heavy rain
  6. 9. Severe snowstorm with high winds and low visibility
  7. 10. Period of unusually cold weather
  8. 13. Shaking of the Earth's surface caused by shifting tectonic plates
  9. 16. Storm that produces large chunks of ice called hail
  10. 19. Powerful rotating storm with high winds and heavy rain