Question

व्हाट वास द ड्रॉबैक आफ सुवेज सिस्टम​

Answer 1

If you are asking the sewage system of Harappan civilisation, then here is your answer:

1. The bathroom floors of the Harappan Civilisation were sloped, so that the dirt or the water in the bathroom could directly go to the sewer.
2. The sewers were covered from the top so that dirt, mosquitos and water logging could not make a mess.
3. They were opened at some places so that cleaning of the sewers could be done.

If you are asking about the modern sewer system, then here is your answer:

1. Nowadays, the sewer system are not so clean.
2. The sewer  are so much filled with dirt and dirty water that due tto rainfall the roads suffer a water logging.
3. The modern sewer systems are stinky as compared to  the ancient times' sewer sytem.

PLEASE MARK ME AS BRAINLIEST.