Fact 1: All life relies on a relatively narrow range of pH, or acidity.

Fact 2: If the pH level is higher or lower, aquatic life is endangered.

Given the two facts above, answer the question "What happens to aquatic life if acidity is higher or lower than a narrow range?" with the following options: 
- 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


 

     It is endangered    