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23 May, 04:41

What large-scale feature of the ocean basin is formed when magma comes up out of Earth's mantle and hardens to form new oceanic crust?

A. mid-ocean ridge

B. subduction zone

C. hydrothermal vent

D. deep ocean trench

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Answers (1)
  1. 23 May, 05:43
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    The mid ocean trench is a constantly forming zone of the ocean bed which forms as plates pull apart allowing the Earths mantle to come up and cool down.
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