Question

Checking the bacterial contamination n drinking water by testing sulphide ions

Answer 1

Cholera and shigella as well as "food poisoning "e. g. bacterial gastroenteritis caused by Salmonella and E. coli. Also relevant are protozoan bugs e. g.
Giardia...
you will die because the bacteria or poison will go inside you then control your body
it depends where you live. Drinking water in some area of the word is contaminated, while in others it isn't 't