Question

why the drainage system of Indus valley civilization an impressive one. ​

Answer 1

Answer:

One of the most remarkable features of the Indus valley civilization is that the city was provided with an excellent closed drainage system. Each house had its own drainage and soak pit, which was connected to the public drainage. Brick laid channels flowed through every street

Explanation:

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Answer 2

Answer:

One of the most remarkable features of the Indus valley civilization is that the city was provided with an excellent closed drainage system. Each house had its own drainage and soak pit, which was connected to the public drainage. Brick laid channels flowed through every street.