Question

question 1 (1 point)
what is the main cause of surface water sinking to cause the deep, thermohaline ocean currents?
density increase caused by increased wind currents
density decrease caused only by greater salinity
density increase caused by cold in polar regions and increased salinity
surface currents converging, generating a dome.
density decrease caused only by cold in polar regions

Explanation:

Thermohaline circulation is driven by differences in water density. In polar regions, water cools (lower temperature increases density) and when sea - ice forms, salt is left behind (higher salinity increases density). Wind currents don't directly cause the density increase for thermohaline sinking. A density decrease (options with density decrease) would not cause sinking. Surface currents converging to form a dome is not the main cause of thermohaline deep - water formation.

Answer:

C. Density increase caused by cold in polar regions and increased salinity