A Best Way To Crack Gorenment Job Exams

Microbiology Objective Questions { Microbiology of Waste Water }

22. Which of the following is responsible for the corrosion problem?
A.Iron bacteria
B.Sulfur bacteria
C.Slime forming bacteria
D.All of these
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23. Water testing relies on the detection of certain indicator organisms known as
A.acid-fast bacteria
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24. The death of a river by environmental pollutants ultimately results from
A.the overpopulation of algae
B.the overabundance of toxic proteins
C.the depletion of oxygen
D.the buildup of sediment on the river bottom
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