Respuesta :
Cold, salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface. Cold water has a higher density than warm water.
It is an absolutely true statement that the salinity of water at the ocean’s surface is lower than the salinity of deeper ocean water. The correct option among the two options that are given in the question is the first option. I hope that this answer has actually come to your great help.