Question

multiple choice question
which type of current is caused by differences in temperature and salinity?

deep water
density
surface

Explanation:

Density currents are driven by differences in water density, which is influenced by temperature (thermal expansion/contraction) and salinity (haline effect). Deep - water currents are a type of density - driven current but the more direct cause - related term here is density. Surface currents are mainly driven by wind. So the current caused by differences in temperature and salinity is a density current.

Answer:

B. density