You are presented with the question "What helps animals to survive?" and the following answer choices: 
- trees
 - food
 - warmth
 - fur
 - steam
 - thirst
 - friendship
 - dreams

Now knowing that thirst is used to make an animal realize that it needs to replenish its bodily water by the body and every plant and animal needs water to survive, choose the best answer.


 

      thirst   