Question

which event typically causes upwelling

Answer 1

Answer:

Conditions are optimal for upwelling along the coast when winds blow along the shore. Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling."

REASON: Wind blowing parallel to the shore causes upwelling of cool water. Thermohaline circulation is mainly due to winds causing circulation of ocean water warmer, less dense water sinking in the ocean and cold water replacing it.