(i) What is meant by tank irrigation ? (ii) State one advantage each of the following means of irrigation : -Geography

(i) What is meant by tank irrigation ? (ii) State one advantage each of the following means of irrigation :  -Geography
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(i) A tank consists of water storage which has been developed by constructing a small bund of earth or stones built across a stream. The water impounded by the bund is used for irrigation.  (ii) 1. Tube-Wells: It can irrigate about ten. times more areas than done by ordinary well and it is an independent source of irrigation.  2. Tanks: The cost of construction of tanks is very low as tanks are natural.
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