Answer:
Chlorine
Step-by-step explanation:
Chlorination is the process of disinfecting drinking water by introducing chlorine to eradicate viruses, germs, and parasites. To get drinking water with safe levels of chlorine, various techniques can be utilized.
Another good example of this is when chlorine is added to public pools to protect it from viruses and diseases
Microbes - a microorganism, especially a bacterium causing disease or fermentation.