Answer:
Mixture, homogeneous mixture, solution
Explanation:
A mixture is defined as a substance which is made by physical combination of two or more substance.
As in sea water, more than two substance are present, therefore is considered as mixture.
A mixture is considered as homogeneous mixture, if it has same proportion of components through out the mixture. In sea water proportions of all the components are same, therefore, its is also a homogeneous mixture.
In solution, solute is dissolved in a solvent and the concentration of the solute is same through out the solution.. In sea water, sodium ions, chloride ions, and several other salts are dissolved in water. Therefore, water is considered as solvents and components present are considered as solute.
so, sea water can also considered as solution.
Among the given options, 1, 3 and 4 are correct
So, sea water is considered as mixture, homogeneous mixture and solution.
