Chapter 1 crossword

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Across
  1. 4. heat transfer by the movement of a heated fluid
  2. 6. the longest chain of mountains in the world
  3. 7. the geological theory that states that pieces of earth
Down
  1. 1. the process by which the ocean floor sinks beneath a deep ocean trench
  2. 2. transferred from a warmer substance
  3. 3. any trace of an ancient organism
  4. 5. it forms along the divergent boundary