Underwater ridges are elongated elevations found on the ocean floor, formed by geological processes such as tectonic activity and volcanic activity. These ridges can be part of larger structures like the Mid-Atlantic Ridge, which is a significant underwater mountain range that runs through the Atlantic Ocean. These ridges play a crucial role in oceanic ecosystems, providing habitats for various marine life. They can also influence ocean currents and weather patterns, making them important for understanding global climate systems. Additionally, underwater ridges are often sites for valuable mineral deposits and can be of interest for scientific research.