Question

write any four source of waste water

Answer 1

here is your answer...
1-house and home created waste water like when we use water for cleaning the utensils and while moping the floor...
2-the industries and the factories are other sourced of the waste water...
3-the restuarants use water for cleanning the utensils then the waste water is produced
4-the resort that have swimming pools produce more amount of waste water....

hope it helps......

Answer 2

first opening water tap