Earthquakes and faults.

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Across
  1. 5. It spreads to make new floor
  2. 6. Cause earthquake
  3. 7. Common along the mid ocean ridges
Down
  1. 1. Makes mountains
  2. 2. Fractures of the Earth's crust when there is movement
  3. 3. creates new islands
  4. 4. It pushes upwards