the answer to this question is a density current forms when more dense seawater sinks beneath less dense seawater
Differences in temperature and in density of seawater drive deep ocean currents.
Deep Currents.
a difference in density
a deference in density
because of differences in pressure and density in a fluid
by the ocean and the blood
deep ocean currents form by the differences in the density of ocean water
Deep currents form where the density of ocean water increase so, water density depends on temperature and salinity. I hope I helped you =)
The Antarctic Bottom Water, North Atlantic Deep Water, and Antarctic Intermediate Water are three density currents that form in polar regions.
deep ocean currents form by the differences in the density of ocean water
Solar energy
It just happens because of the differenciation in the air density which allows the so called convection currents to occur/form. Complex I know but is the closest conclusion.