Ocean Floor Features

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Across
  1. 6. a broad, relatively shallow submarine terrace of continental crust forming the edge of a continental-landmass
Down
  1. 1. flat seafloor area at an abyssal depth
  2. 2. seafloor mountain system formed by plate tectonics
  3. 3. a long, narrow ditch.
  4. 4. areas where the volcano is rifting or splitting apart
  5. 5. underwater mountain formed by volcanic activity