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धर्मो रक्षति रक्षितः

QUESTION OF THE DAY

Q.
Recent contamination of water is indicated by the presence of:
A.
Streptococci
B.
Clostridium
C.
E. Coli
D.
Salmonella
Q. Recent contamination of water is indicated by the presence of:
Ans: [A] Streptococci
Explanation:
A
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