Weegy: DIVERGENT plate boundaries create new ocean crust.
User: What type of plare boundary is great rift valley?
Weegy: The Great Rift Valley is a DIVERGENT plate boundary.
User: If the East pacific rise is the source of new rock, which trench:Chile or Tonga would contain the oldest rock?
Weegy: If the East Pacific Rise is the source of new rock, the Tonga Trench would contain the oldest rock.
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