GEOLOGY

Detailed explanation-1: -As a general rule the solubility of most rocks and minerals increases with temperature, salinity is lower in colder parts of the ocean and higher in warmer parts. The average global ocean salinity is around 35 parts per thousand, or 3.5%.

Detailed explanation-2: -Increases in temperatures of surrounding entities like ice and an increase in precipitation adds fresh water into the sea, which lower salinity. Seawater with lower salinity is lighter in density and won’t sink as much as denser water. This process changes ocean currents.

Detailed explanation-3: -Rising sea levels increase the salinity of both surface water and ground water through saltwater intrusion.

Detailed explanation-4: -The density of seawater (salinity greater than 24.7) increases as temperature decreases at all temperatures above the freezing point. The density of seawater is increased by increasing pressure.