Plate tectonics

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Across
  1. 3. where do most earthquakes occur?
  2. 4. what feature does a divergent-boundary cause?
  3. 9. 2 plates overlap or come together
  4. 10. 2 plates slide past each other
Down
  1. 1. what happens when 2 plates slide back and forth
  2. 2. what causes tectonic plates to move?
  3. 5. 2 plates moving in opposite directions, or away from each other
  4. 6. melted rocks
  5. 7. valleys that occur at divergent boundaries
  6. 8. when the ocean floor folds under a tectonic plate