GEOLOGY

Detailed explanation-1: -Seawater is denser than freshwater. Salinity, temperature and depth all affect the density of seawater. Temperature and salinity affect water density. Cold water is denser than warm water.

Detailed explanation-2: -Salt in seawater makes it denser than freshwater.

Detailed explanation-3: -The density of water increases as the salinity increases. 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.

Detailed explanation-4: -Salt water is more dense than fresh water Salt water has more stuff in it than fresh water. That stuff would be the salt, which makes the mass of water greater, without adding much to its volume. Density = mass/volume. Increasing the mass by adding salt increases the density.

Detailed explanation-5: -The more salt there is dissolved in the water, the greater its salinity. When comparing two samples of water with the same volume, the water sample with higher salinity will have greater mass, and it will therefore be more dense.