Question

The circulation of the deep ocean is driven by the increase in density of surface water due to changes in its temperature and/or salinity. A major mechanism whereby the density of surface waters at high latitudes increases is by__________________

Answer 1

net evaporation

Step-by-step explanation:

• The deep water in the ocean is driven by the increase of the density of the surface water and the changes that take place in its temperatures and the major mechanism by which the density of the surface water at the high latitude increase is by the fact of the net rate of the evaporation.

Answer 2

Cooling

Step-by-step explanation:

In the higher latitudinal regions, the temperature remains much colder in comparison to the low latitudinal region. Due to this, there occurs rapid cooling of the seawater, and the surface water also remains moderately cool, along with the increasing salt concentration, the density of the seawater in this region is high.

The rate of cooling is relatively high here in comparison to the rate of evaporation or heating. So the cooling is one of the major mechanisms in the high latitude regions that are responsible for the formation of denser water.