You are presented with the question "Plants will die from a lack of water if vapor in clouds doesn't what?" and the following answer choices: 
- support
 - root growth
 - swell
 - break off
 - evaporate
 - expand
 - protect them
 - condense

Now knowing that water vapor condensing in clouds causes rain and plants wither and die for lack of rain, choose the best answer.


 

        condense 