How Do Ocean Trenches Form - Continental plates make up the continents. Web oceanic plates make up the ocean floor. Web trenches are long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one. Web oceanic trenches are formed by the process of plate tectonics, which involves the movement and interaction of. Both oceanic and continental plates are.
Web trenches are long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one. Web oceanic plates make up the ocean floor. Continental plates make up the continents. Web oceanic trenches are formed by the process of plate tectonics, which involves the movement and interaction of. Both oceanic and continental plates are.