An increase in seawater density can be caused by a in temperature or a/an in salinity

An increase in seawater density can be caused by a decrease in temperature or an increase in salinity.

Further Explanation: Density  Density is the mass of a substance per unit volume. Mathematically;

Density is measured in g/cm³ or kg/m³Temperature and density The density varies inversely proportional to temperature of water. This is because when the temperature of water increases, then the space between water molecules increases and therefore the density decreases. If the temperature of water decreases its density will increase up to a certain point. This explains why warm water floats while cold water sinks since warm water is less denser than cold water.Salinity and density The density of water is directly proportional to its salinity.Salinity refers to the amount of salt in water.As density increases the amounts of salts in the water increases while a decrease in density causes a decrease in salinity. Addition of freshwater on sea water decreases the salinity and density of sea water.Evaporation on the other hand increases salinity and density of sea water.

Therefore; An increase in seawater density can be caused by a decrease in temperature or an increase in salinity.

Keywords: Density, salinity, temperature

Learn more about: Density of ocean water: Properties influencing sea water: Salinity of sea water: Effect of temperature on the density of sea water:

Level: High school

Subject: Geography

Topic: Ocean and temperature