The boiling point of a solution will and the vapor pressure will with a( in the amount of dissolved solute.

This is about the colligative property of a solution. The boiling point, vapor pressure and freezing point are affected when solute is added to the solution. These colligative properties are called boiling point elevation, vapor pressure lowering and freezing point depression. These properties are affected by the amount of the solute, not by its identity. Thus, the complete answer to the statement is

The boiling point of a solution will increase and the vapor pressure will decrease with a(n)increase in the amount of dissolved solute.

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The dispersed phase is liquid and dispersed medium in milk is liquid