Question

which among the following factors help in confirming the contamination of river water?(|)measure of pH of river water
(||)presence of chlorine in river water (|||)existence of diverse life forms
(||||)presence of coliform bacteria
options are (A) | , |||| (B) | ,|| &||| , (C) || & ||| , (D) ||,|||&||||​

Answer 1

Answer:

measure of pH of river water