Fact 1: Evaporation can be used for separating a solute from a solvent in a solution.

Fact 2: Evaporation occurs when a liquid dries.

Given the two facts above, answer the question "What can be used to separate a solute from a solvent?" with the following options: 
- liquid drying
 - activation energy
 - a hydraulic system
 - chemical equations
 - Condensation
 - circulatory systems
 - heat energy
 - water vapor


 

 liquid drying        