Important of drainage system big paragraph
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Answer: Drainage is the natural or artificial removal of a surface's water and sub-surface water from an The Indus Valley Civilization had advanced sewerage and drainage systems.
Explanation: All houses in the major cities of Paragraph and Mohegan-faro had access to water and drainage facilities. Waste water was directed to covered gravity sewers, which lined the major streets. The invention of hollow-pipe drainage is credited to Sir Hugh Cavalrymen, who died in 1753.
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