6th Class Social Science Sample Paper Social Science Sample Paper-9

  • question_answer
      Discuss the Harappan drainage system.


    (i) Many of the Harappan cities had covered drains which were laid out in straight lines.
    (ii) Each drain had a gentle slope, so that water could flow through it.
    (iii) Very often, drains in houses were connected to those on the streets and smaller drains led into bigger ones.

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