How do undercurrents form? - Answers

Undercurrents form due to variations in water temperature, salinity, and density, which create differences in water pressure. These differences can lead to the movement of water masses beneath the surface, often driven by wind, tides, or the Earth's rotation. Additionally, geographical features like Coastlines and seabeds can influence the flow of water, contributing to the development of undercurrents. Overall, the interaction of these factors results in complex underwater currents that can transport nutrients and affect marine ecosystems.