navyaCurator
If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is
If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is
∴ BOD of the sewage is 250 ppm.
The official notification of the ISRO Scientist CE will release by the Indian Space Research Centre (ISRO).