What are large streams of moving water that flow through the oceans called?

• A. Ocean currents
• B. Waves
• C. Tides
• D. Upwellings

Answer: (A)

Ocean currents are large streams of moving water that travel through the oceans, forming continuous, directional flows that can span thousands of kilometers. They are driven by prevailing winds, the rotation of the Earth (Coriolis effect), and variations in water density and salinity, and they play a key role in distributing heat and nutrients around the globe. This makes them the best description for large, steady flows through the ocean. In contrast, waves are surface energy patterns, tides are periodic rises and falls caused by the Moon and Sun's gravity, and upwellings are vertical movements that bring deeper water to the surface.