The Earth's Oceans: The Composition of Water and Subsurface Topography

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Across
  1. 3. _________boundary A plate boundary where two plates move away from each other.
  2. 4. The process by which sediments are pressed together under their own weight.
  3. 7. Oceanic_________ A long narrow steep-sided depression in the Earth's oceanic crust, usually lying above a subduction zone.
  4. 8. The amount of mass of a substance is a given volume; mass per unit volume.
  5. 10. The total amount of dissolved salts in a water sample.
  6. 12. Process in which sediment is laid down in new locations.
  7. 15. _________plain A smooth nearly flat region of the deep floor.
Down
  1. 1. _______valley A long narrow valley between two parallel faults, usually formed by crustal thinning and forces from magma.
  2. 2. _________vent An opening in the sea floor out of which heated mineral-rich water flows.
  3. 5. _______boundary A plate boundary where two plates move toward each other.
  4. 6. A force that moves rock and other materials downhill; the force that pulls objects toward each other.
  5. 9. ________ridge An undersea mountain chain where new ocean floor is produced.
  6. 10. A large underwater mountain at least 1000 meters above the ocean floor but below the surface water.
  7. 11. Continental__________ A gently sloped, shallow area of the ocean floor that extends outward.
  8. 13. The process by which water, ice, wind, or gravity moves weathered rock or soil.
  9. 14. Continental_______ A steep incline of the ocean floor leading down from the edge of the continental shelf.