SEAs are a very large and very large variety of saltwater on the surface of the earth and associated with oceans, or connecting a continent with other continents and islands with other islands.
Sea water is a mixture of 96.5% pure water and 3.5% of other materials such as salt, dissolved gas, organic matter and unsolved particles, whose main physical properties of seawater is determined by 96.5% pure water.
i like sea water & beach