Dumping untreated sewage into water leads to:
If untreated sewage is discharged into water bodies it will clean the water resources.
If untreated sewage is discharged into rivers and seas, it will clean the water resources.
Two fishermen live in two different cities 'A' and 'B'. In city 'A' sewage water is treated and then discharged into the rivers. In city 'B' untreated sewage is dumped into the rivers. Who is likely to catch more fishes?