Question

Upwelling is when ___________________

A wind blows water away from a coastline, causing cold water to rise up from the bottom.

B cold water from the surface pulls warmer water from below to the top.

C wind blows water towards a coastline, causing cold water to rise up from the bottom.

D warm water from the ocean's bottom rises to the surface.

Answer 1

The answer is  C. Upwelling occurs when the wind uses its energy to blow the cold water up towards the surface making the warm water sink.

Answer 2

Upwelling is a process in which cold water from depths arise to the surface