If boiling salt water causes the water to evaporate while leaving salt behind, then what happens when salt water is boiled?

Answer choices:
- 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       