Question

Explain: Oceans extend over a large area that is why they differ in salinity and temperature which cause movement of water in masses in form of currents. These currents bring changes in coastal areas and climate as a whole

Answer 1

Answer:

Typically, the salinity decreases from the surface ocean to deep waters is very small, from about 36 g/L (ppt) at the surface to 35 g/L (ppt) in the deep water, thus there is a very small density decrease with depth given a constant temperature. The salinity of seawater also affects it's freezing point temperature.