Question

Answer the following questions :

1)what happens to the waste water when done a load of washing or flush the toilet?
2)how did people deal with waste water in past?
3)wastewater pipe network beneath our cities are like underground rivers of wastewater, comment?
4)wastewater treatment removes most of the contaminants but there is still a risk to the environment and public health, why?

Answer 1

1)it goes down to a pipe into the sewage
2)you can type it in the Internet
3)yes but you can't be sure about it
4)because it affects the rivers and clean water bodies
Hope it helps you and please mark it as the brainlest please