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How does ice in the north and south poles trigger the movement of ocean currents?

Sagot :

Answer:

Simply put, ice triggers the movement of ocean currents. As water freezes in the North and South Poles, the water surrounding the ice becomes saltier and colder, since the salt leaves the water upon freezing. The ice then cools the water surrounding it. ... Warm water replaces it on the surface and moves to the North.