The main cause of the Coriolis effect is the rotation of the Earth on its axis. This phenomenon results in the apparent deflection of moving objects, including winds and ocean currents, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The Coriolis effect influences weather patterns and oceanic circulation, shaping climates around the world. It plays a significant role in meteorology and affects both natural ecosystems and human activities, including navigation and transportation.