I would say that <u>a deadly water-borne microorganism in a city's water source</u> would most quickly devastate a human population, merely because a huge number of people uses this water for some kind of a purpose.
Answer:
Here are five important tips for preventing cross-contamination in your operation.
Implement a personal hygiene program. ...
Remind employees to wash their hands. ...
Use separate equipment. ...
Clean and sanitize all work surfaces. ...
Purchase prepared food.
Explanation:
(copied from Google)
passivation is the answers
I do believe you are looking for Woody Guthrie :)