You are presented with the question "What happens to salt in seawater as it freezes at the freezing point?" and the following answer choices: 
- vaporization
 - boiling
 - expelled
 - salinity
 - evaporation
 - less water
 - water vapor
 - Temperature

Now knowing that adding salt to a solid decreases the freezing point of that solid and when seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine, choose the best answer.


 

   expelled      