The deepest parts of the ocean are long, narrow valleys called _______Group of answer choicesriftstrenchesridgesbelts

The deepest parts of the ocean are long, narrow valleys called trenches.

Explanation:

Ocean trenches are steep depressions in the ocean floor that are formed primarily by tectonic processes. They are often located at convergent plate boundaries where one tectonic plate is subducting, or sinking, beneath another. These trenches can reach remarkable depths; for example, the Mariana Trench is the deepest known point in Earth's oceans, reaching about 36,000 feet (over 10,900 meters). Trenches play a significant role in the ocean's ecosystem and the geological processes of the Earth, influencing ocean currents, marine habitats, and even serving as sites for unique biological communities that thrive under extreme conditions. The other options—rift, ridges, and belts—refer to different geological features associated with plate tectonics but do not describe the deepest oceanic formations.