What is the drawback of having a number of wells and Tubewells in a particular region?
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1. Only limited area can be irrigated. Normally, a well can irrigate 1 to 8 hectares of land.
2. The well may dry up and may be rendered useless for irrigation if excessive water is taken out
3. In the event of a drought, the ground water level falls and enough water is not available in the well when it is needed the most.
4. Tubewells can draw a lot of groundwater from its neighbouring areas and make the ground dry and unfit for agriculture.
5. Well and tube well irrigation is not possible in areas of brackish groundwater.
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