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

Fact 2: For example, in salt water, salt is the solute and water is the solvent.

Given the two facts above, answer the question "What can separate salt from water?" with the following options: 
- vaporization
 - shaking
 - evaporation
 - mouth of rivers
 - salinity
 - freezing
 - Heat energy
 - nothing


 

   evaporation      