

MCQOPTIONS
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1. |
Which of the following species in water reveal the presence of fecal pollution of human or animal origin? |
A. | <i>E.coli</i> |
B. | <i>Fecal Streptococci</i> |
C. | <i>Clostridium perfringens</i> |
D. | All of these |
Answer» E. | |