You are presented with the question "What reduces a human's bodily water?" and the following answer choices: 
- flying
 - steroids
 - fishing
 - evaporation
 - sugar
 - sweating
 - reading
 - Roundworms.

Now knowing that if an animal sweats then that animal 's bodily water decreases and human beings are group animals, choose the best answer.


 

      sweating   