You are presented with the question "What happens to aquatic life if acidity is higher or lower than a narrow range?" and the following answer choices: 
- Plant growth is reduced
 - They may not survive.
 - Aquatic life sinks
 - harm them
 - It is endangered
 - Damages them
 - Aquatic life moves to dry land
 - Aquatic life flourishes

Now knowing that all life relies on a relatively narrow range of pH, or acidity and if the pH level is higher or lower, aquatic life is endangered, choose the best answer.


 

     It is endangered    