natural disaster

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Across
  1. 3. something that contaminates the environment.
  2. 6. long-term pattern of weather.
  3. 8. a kind of vibration through the earth's crust.
  4. 10. increase of temperature of Earth's atmosphere.
  5. 11. a series of events that are regularly repeated in the same order.
  6. 12. the release of volcano
  7. 14. synonym of 'sick'
  8. 15. complete disappearance of a species from Earth.
Down
  1. 1. an event or situation that causes something to start
  2. 2. the exterior of an object (ocean)
  3. 4. the action of clearing a wide area of trees.
  4. 5. physical harm that caused by something or someone.
  5. 7. the result of damage.
  6. 9. potential source of harm.
  7. 13. amount of force