geography

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Across
  1. 4. flat lying volcanoe made up of only lava
  2. 5. areas over which Supervolcanoes form
  3. 7. river water dissolves some types of rock
  4. 8. plate margin where no new crust is made or any destroyed
  5. 9. currents which occur in the mantle
  6. 11. plates do this at constructive plate margins
Down
  1. 1. zone where oceanic crust is taken underneath continental crust
  2. 2. small lake formed when meanders erode away their own banks
  3. 3. underground spot where the earthquake started
  4. 6. the type of mountains formed at destructive and collision plate boundaries
  5. 10. spot where earthquake shock waves first reach the earth's surface