Question

plate margins orogeny and deep sea treches​

Answer 1

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Explanation:

-Plate margins orogeny

• An orogeny is an event that leads to both structural deformation and compositional differentiation of the Earth's lithosphere (crust and uppermost mantle) at convergent plate margins.

-Deep sea treches

• Deep-sea trench, also called oceanic trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths.