Plate tectonic review

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Across
  1. 4. this is formed by a convergent plate boundary
  2. 5. when two plates collide into each other
  3. 7. found in the mantle
Down
  1. 1. when two plates spread apart from each other
  2. 2. this happens with a divergent plate boundary
  3. 3. when land goes under the crust into the mantle
  4. 6. when two plates slide by each other