Which of the following is used as an indicator for recent fecal contamination of waterWhich of the following is used as an indicator for recent fecal contamination of water mcq  given below:

Q. Which of the following is used as an indicator for recent fecal contamination of water

(a) E coli
(b) corynebacterium diphtheriae
(c) pseudomonas
(d) Streptococci

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Ans:(d) Streptococci  
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