Fact 1: Condensing means changing from a gas into a liquid by reducing heat energy.

Fact 2: Lower energy means lower temperature.

Given the two facts above, answer the question "By changing a gas into a liquid, how is condensing achieved?" with the following options: 
- Water expanding
 - lowering the temperature
 - blowing on it
 - taking the temperature
 - heat is produced
 - heat production
 - permineralization
 - stirring a liquid


 

  lowering the temperature       