Fact 1: Heating salt water causes the water to evaporate while the salt remains.

Fact 2: On high heat, bring to a boil.

Given the two facts above, answer the question "What happens when salt water is boiled?" with the following options: 
- salt changes into other things
 - flow of electrons
 - water is evaporated
 - water freezes
 - salt is evaporated
 - prolactin release
 - Plant growth is reduced
 - looseness of dirt or compost


 

   water is evaporated      