Question

Why were the drains in the Indus Valley Civilisation covered with stone slabs?​

Answer 1

Answer:

I don't knowwwwwwwwwwwwwwwwwwwwwwww sorry

Answer 2

☑ Required Answer-

$☑ Required \: Answer-}$

The conduits to the main drains running through the middle of the streets below pavement level and covered with flat stones and sturdy tile bricks. The covered drain was connected to the larger sewerage outlets which finally led the dirty water outside the populated areas.