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Type: Multiple-Choice
Category: Oceanography and Hydrology
Level: Grade 8
Author: emac40
Last Modified: 6 years ago

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Oceanography and Hydrology Question

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Grade 8 Oceanography and Hydrology

The process by which molten material adds new oceanic crust to the ocean floor is called
  1. organic rock.
  2. mid-ocean ridge.
  3. rock cycle.
  4. seafloor spreading.