Answer :
Salinity, temperature and depth all affect the density of seawater. Density is a measure of how tightly a certain amount of matter is packed into a given volume. The more the stuff is packed in, the higher the density. Density can be calculated by dividing an object's mass by its volume
Density in seawater is determined by salinity
How is seawater salinity measured?
The salinity of seawater is defined as the total amount by weight of dissolved salts in one kilogram of seawater.
How does salinity affect density?
Salinity Affects Density
When salt is dissolved in fresh water, the density of the water increases because the mass of the water increases. Water and soil salinity are measured by passing an electric current between the two electrodes of a salinity meter in a sample of soil or water. The electrical conductivity or EC of a soil or water sample is influenced by the concentration and composition of dissolved salts.
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