The Earth puzzle

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