Condensing means changing from a gas into a liquid by reducing heat energy, and condensation involves molecules joining together with the release of water. Given these facts, what results in changing from a gas into a liquid by reducing heat energy among the following options:
- exposure to cold
 - degrees celcius
 - molecules joining together
 - rain or sun shine
 - Warm air moving into cold air
 - molecules separating
 - molecules becoming nothing
 - molecules exploding


 

   molecules joining together      