What are the two main factors that influence ocean currents?

The two main factors that influence ocean currents are wind and the Earth's rotation. Wind drives surface currents by exerting force on the water, while the Coriolis effect, resulting from the Earth's rotation, causes these currents to curve rather than flow in a straight line. Additionally, differences in water density due to temperature and salinity variations can also influence deeper ocean currents, contributing to the overall movement of ocean water.