Answer :

Under Green Revolution, the use of HYV seeds was promoted which required not only extensive use of fertilizers and pesticides but also proper irrigation facilities. Micro irrigation is done through hand-pumps, small canals, ponds, wells, rain-water harvesting and tube wells all of which access the naturally occurring ground water. This exploitation is one of the major reasons behind the decline in ground water levels. the multi cropping system has also reduced the ground water levels as more than one crop on a single plot of land requires more water for proper growth.


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