The Earth puzzle

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Across
  1. 2. the outside layer of something
  2. 5. the sea
  3. 6. The planet we live in
  4. 7. Rises from the water
  5. 8. a strain by being stretched
  6. 10. sub layer of the earth surface
  7. 13. emphasize differences
  8. 14. earth surface that is not covered by water
Down
  1. 1. Shakes the Earth
  2. 3. Spits out lava
  3. 4. Natural elevation of the earth surface
  4. 9. a mainland contrasted with islands
  5. 11. danger or risk
  6. 12. The study of Earth
  7. 13. shows The direction of north