Fact 1: An animal requires nutrients for survival.

Fact 2: Water is the most important nutrient for animals and humans.

Given the two facts above, answer the question "An animal requires what for survival?" with the following options: 
- a pillow
 - a collar
 - a leash
 - stamina
 - water
 - protein
 - food
 - Enzymes


 

     water    