Fact 1: Boiling is when liquids are heated above their boiling point.

Fact 2: If the pressure is reduced, the boiling point is lowered.

Given the two facts above, answer the question "To make a liquid boil more easily when heat is applied, one should" with the following options: 
- degrees Celsius
 - Evaporation of water
 - absorb light energy
 - heat is produced
 - aqueous solution
 - lower the surrounding pressure
 - evaporative cooling
 - depress neuronal excitability


 

      lower the surrounding pressure   