Respuesta :
In these areas, the balance between gravity and Earth's spin causes geostrophic currents to flow. Deep ocean currents are caused by differences in water temperature and salinity (density).
Answer:
The correct answer is temperature and salinity of the water .
Explanation:
The currents in upper 100 meters of Ocean are generated by the wind but the currents also flow below the 1000 meters in depth. These deep ocean currents are mostly driven by the differences in the density of the water which is caused by the temperature and salinity of the water. This process due to thermal (temperature) and haline (salinity) is known as thermohaline circulation.
Thus, the temperature and salinity of the water is the correct answer.