Mechanism Of Plate movement

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Across
  1. 4. a Theory Proposed by Alfred Wegener
  2. 8. waves that only pass through solids
  3. 9. the two supercontinent, the precursor to Asia
  4. 11. the final layer of the earth
  5. 12. a resistance force that resists movement of lithospheric plates
  6. 13. waves that only travel through the inner layers
  7. 14. Earth's first supercontinent
Down
  1. 1. the third layer of the earth
  2. 2. A geologist who proposed the seafloor spreading theory
  3. 3. the first layer of the earth
  4. 5. waves that pass through liquid and solid
  5. 6. waves that only travel on the surface
  6. 7. the second layer of the earth
  7. 10. the two supercontinent, which is present-Day Africa