Plz hurry on a ! which statements explain what happens at deep-ocean trenches? check all that apply. crust is formed. mountains are formed. seafloor spreading occurs. crust becomes molten rock. denser plates slide under lighter plates. more than one qualified answers

Seafloor spreading, Crust becomes molten rock, Crust is formed, all of them I think

seafloor spreading occurs. Denser plates slide under the lighter plates.

Explanation:

The oceanic crust bends deep inside and forms deep ocean trenches. The crust here actually sinks into mantle under continental crust  through the process called subduction which lasts for million of years. Subduction occurs due to oceanic crust being denser than continental crust.

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