Plate Tectonics

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Across
  1. 2. Earth's ______________ is broken into tectonic plates
  2. 3. area where one plate slides under another
  3. 5. long past plants and animals that serve as evidence of continental drift
  4. 6. two plates move toward each other
  5. 7. long, tall mountain in the middle of the ocean
Down
  1. 1. two plates move apart
  2. 2. hypothesis that continents are in constant motion
  3. 4. landform where magma erupts