Water currents are continuous, directed movements of water in oceans, rivers, and lakes. They are caused by various factors, including wind, temperature differences, and the Earth's rotation. These currents can be surface currents, which flow near the top of the water body, or deep-water currents, which occur at greater depths. In oceans, water currents play a crucial role in regulating climate and distributing heat around the planet. For example, the Gulf Stream is a well-known warm ocean current that influences weather patterns in North America and Europe. Understanding water currents is essential for navigation, fishing, and environmental conservation.