Plate tectonics

12345678910
Across
  1. 4. forces
  2. 5. waves
  3. 7. waves
  4. 9. convection
  5. 10. method
Down
  1. 1. forces
  2. 2. force
  3. 3. resistance
  4. 4. push
  5. 6. arc
  6. 7. pull
  7. 8. valley