mention 3 features of indian drainage system
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there r 2 types of drainage systems
1) open drainage system and 2 ) closed drainage
in open one it is mostly seen in villages in an open area and
the closed is the one which we use in our daily life
1) open drainage system and 2 ) closed drainage
in open one it is mostly seen in villages in an open area and
the closed is the one which we use in our daily life
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