You are presented with the question "Animals adapted to living within certain salinity ranges require great amounts of what to survive?" and the following answer choices: 
- liquid
 - water
 - oxygen
 - air
 - sodium
 - grass
 - energy
 - atmosphere

Now knowing that an aquatic animal requires great amounts of water to survive and aquatic animals are adapted to living within certain salinity ranges, choose the best answer.


 

  water       