Q. Common indicator organism of water pollution is
A. Entamoeba histolytica
B. Lemna
C. Eichhornia
D. Escherichia coli
Answer: Escherichia coli
A. Entamoeba histolytica
B. Lemna
C. Eichhornia
D. Escherichia coli
Answer: Escherichia coli
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