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Name the most common indicator of fecal contamination in water?
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- Indicate some possible ways in which foods may become contaminatedwith enteric organisms.The following is not an indication of a very low BOD except? A The water is healthy thus, water quality is high. B) Contamination is present. c) The available microorganisms are uninterested in consuming the available organics. The available microorganisms are dead or dying.Which would be more likely to cause illness and why—a water sample that tested positive for fecal coliforms or one that tested positive for E. coli O157:H7?
- Does a positive presumptive test mean that the water is absolutely unsafe to drink?Identify the three nitrogenous waste products, and describe the fate of each.a) What is the consequence of discharging larger volumes of sewage that is untreated into a river? b) What is the significance of anaerobic sludge digestion in sewage treatment?