You are presented with the question "What can transform water from liquid to a gas?" and the following answer choices: 
- It gets heated up
 - temperature taking
 - evaporation
 - Heat energy
 - checking weather
 - lowered energy cost
 - temperature changes
 - observing nature

Now knowing that temperature changing can cause phase changes and another example of a phase change is the transformation of water from liquid to a gas, choose the best answer.


 

       temperature changes  