Geography crossword puzzle

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Across
  1. 2. The imprint left behind by an organism
  2. 5. A sudden shaking of the Earth
  3. 8. The recreation of the shape left behind in an organisms imprint
  4. 12. The remains or impression of an organism
  5. 13. To move towards each other; a type of boundary
  6. 14. The origin of the shaking of the Earth
  7. 15. A combination of all landmasses on Earth that existed millions of years ago on Earth
  8. 16. The point right above the origin of the earth shaking
  9. 17. to replace organic matter with minerals
  10. 19. The destruction the shaking of the Earth causes
Down
  1. 1. A large land mass on Earth
  2. 3. To move towards each other; a type of boundary
  3. 4. The middle layer of the earth
  4. 6. A cone of solid molten rocks that spews molten rock and ash
  5. 7. The strength of the shaking of the ground
  6. 9. A giant wave that can cause much destruction
  7. 10. The innermost layer of the Earth; the hottest layer
  8. 11. A tool used to measure the strength of the shaking of the Earth
  9. 13. The skin of the Earth; the thinnest layer
  10. 18. Cracks in the Earth's surface