Why is tank irrigation popular in South India? - Vidyadip

Question

Why is tank irrigation popular in South India?

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Answer

Tank irrigation is important in the south India because:
(i) The land there is undulating and forms natural depression with underlying hard, impervious rocks prevent the percolation of water.
(ii) Tanks enable people to arrest the river water which otherwise flows away.
(iii) There is absence of many perennial rivers.

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