Fact 1: Disease-causing microbes have a negative impact on the body.

Fact 2: Water was tested for the presence of disease-causing microbes.

Given the two facts above, answer the question "Water that is not what can have a negative impact on the body?" with the following options: 
- salinity
 - chemicals
 - sweat
 - an object
 - tested
 - deadly
 - dangerous
 - dead


 

     tested    