Common indicator organism of water pollution is

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