Adding salt to a solid decreases the freezing point of that solid, and ice is the solid form of water. Given these facts, what decreases the freezing point of ice among the following options:
- hyperthyroidism
 - increasing temperature
 - heating liquids
 - lowering temperature
 - Dehydration
 - keeping the temperature steady
 - adding salt
 - hypothyroidism


 

       adding salt  