NATURAL DISASTERS

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Across
  1. 4. Solid ground, especially in contrast to the sea or air (land)
  2. 6. To ascertain the size, amount, or degree of something (measure)
  3. 7. No longer in existence; having died out (extinct)
  4. 9. Sudden shaking of the ground (earthquake)
  5. 10. A unit of land area (acres)
  6. 11. Sections of the Earth's crust (plates)
  7. 12. To be consumed by fire (burn)
Down
  1. 1. Presently inactive but with potential to become active again (dormant)
  2. 2. Elevated terrain, often mountainous (highlands)
  3. 3. Uncontrolled fire in wild vegetation (wildfire)
  4. 5. To propagate widely (spread)
  5. 7. The act or process of bursting forth violently (eruption)
  6. 8. A disturbance on the surface of a body of water (wave)