Answers

2015-06-19T12:14:22+05:30
It was covered

it was placed beside the roads

they kept it neat
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2015-06-19T13:02:34+05:30
In the early bronze age civilization, the drainage system was very impressive. Every house had its own bathroom paved with bricks, with drains connected through the chutes to the street dams. These streets drains were aligned to the margins of the streets. The drains were covered either with bricks or with slabs. 

hope it helps.. ^_^
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