1.

If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is(i) Presumptive coli-form test(ii) Confirmed coli-form test(iii) Completed coli-form test

A. nly (i)
B. oth (i) and (ii)
C. oth (i) and (iii)
D. ll (i), (ii) and (iii)
Answer» E.


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