What are 2 prominent features on the seafloor that are also found land?

Two prominent features found on both the seafloor and land are mountains and valleys. Underwater, these features manifest as mid-ocean ridges and deep-sea trenches, respectively. For instance, the Mid-Atlantic Ridge is an underwater mountain range, while the Mariana Trench represents a deep-sea valley. Both types of features result from tectonic processes, illustrating the geological similarities between terrestrial and oceanic landscapes.