Respuesta :
Answer:
1) The mariana trench. 2) Tonga trench. 3) The philippine trench.
Ocean trenches are found in every ocean basin on the planet although the deepest ocean trenches ring the Pacific as part of the so-called ring of fire that also includes active volcanoes and earthquakes zones ocean trenches are result of tectonic activity which describes the movement of the earths Lithosphere. Hope this helps you.
