inside the earth

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Across
  1. 5. densest part of the crust
  2. 6. a german scientist who proposed continental drift
  3. 8. made up of upper mantle and the crust
  4. 9. Rigid rocky layer
Down
  1. 1. one plate going under another
  2. 2. portion of the earth that makes land
  3. 3. all together
  4. 4. soft plastic like layer
  5. 7. theory that continents moved