`BOD` value less than 5 ppm indicates a water sample to be

BOD value less than 5 ppm indicates as water sample to be :

Biochemical Oxygen demand (BOD) is a measure of organic metrtal present in water BOD value less than 5 ppm indicate w water sample to be

Biochemical oxygen demand value less than 5ppm indicates a water sample to be

Biochemical Oxygen Demand (BOD) is a measure of organic materials present in water. If BOD value is less than 5ppm then water sample is to be