Final answer:
The Coriolis force influences the direction of wind and ocean currents, causing counterclockwise ocean circulation in the Northern Hemisphere. This leads to equatorial upwelling, where deep, cold water rises to replace surface water pushed away from the equator.
Step-by-step explanation:
The Coriolis force is involved in equatorial upwelling because it influences the direction of wind and ocean currents. In the Northern Hemisphere, the Coriolis force causes winds to be deflected to the right, which leads to counterclockwise ocean circulation. This counterclockwise circulation pushes the surface water away from the equator, causing deeper, colder water to rise and replace it, resulting in equatorial upwelling.