What are the colligative similarities and differences of...?

Question

... ocean salt water around the world?

I don't really understand what colligative similarities and differences are.

Can you please help me?

Anything would be helpfull.

Answer 1

Colligative - Depending on the quantity of molecules but not on their chemical nature.

Colligative properties - properties of a solution that depend on the number of solute particles present but not on the chemical properties of the solute. Colligative properties of a solution include freezing point, boiling point, osmotic pressure, and solvent vapor pressure.