plate tectonics chapter 8

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Across
  1. 1. parallel forces acting in opposite directions
  2. 2. zone an area of many fractured pieces of crust along a large fault
  3. 4. mountain parallel ridges that form where blocks of crust move up or down along faults
  4. 7. trench deep, underwater toughs created by one plate subducting under another plate at a convergent plate boundary
  5. 9. the upward vertical motion of Earth's surface
  6. 11. is the equilibrium between continental crust the denser the magma below
  7. 12. the downward motion of Earth's surface
  8. 13. arc a curved line of volcanoes that forms parallel to a plate boundary
Down
  1. 1. a change in the shape of rock caused by stress
  2. 3. squeezing stress
  3. 5. stress that pulls something apart
  4. 6. mountain where large regions rise vertically with very little deformation
  5. 8. fault where tectonic plates slide horizontally past each other
  6. 10. mountain made of layers of rocks that are folded