4. How are ocean trenches formed? (1 point)
Ocean trenches are formed when oceanic plate cools and moves to the surface of the ocean.
Ocean trenches are formed when the denser oceanic late sinks.
Ocean trenches are formed when molten rock cools and solidifies.
Ocean trenches are formed when magma accumulates on the ocean floor.

Respuesta :

Answer:

Ocean trenches are formed when the denser oceanic plates sink.

Explanation:

In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.