Condensing means changing from a gas into a liquid by reducing heat energy, and lower energy means lower temperature. Given these facts, by changing a gas into a liquid, how is condensing achieved among 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       