Challenger App

No.1 PSC Learning App

1M+ Downloads
Minimum D.O prescribed for a river stream, to avoid fish kill is:

A2 ppm

B4 ppm

C8 ppm

D10 ppm

Answer:

B. 4 ppm


Related Questions:

The acceptable range of pH for potable water:
The colour of water is measured on
Temporary hardness is due to the presence of :
The bacteria that can survive in the presence and absence of oxygen are called
If the methyl orange alkalinity of water equals or exceed total hardness, all of the hardness is