Discussion
At a convergent boundary between an oceanic and a continental plate,
Answer: A
Correct answer: the oceanic plate descends beneath the continental plate
Oceanic lithosphere is denser than continental, so where the two converge it is the oceanic plate that is driven down into the mantle. This produces the whole subduction assemblage: an oceanic trench, a dipping zone of earthquakes reaching several hundred kilometres, and a volcanic arc on the overriding continent.
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