Which of these following practices is mainly responsible for depletion of groundwater levels ?
A
Construction of Canals
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B
Use of Tanks
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C
Digging of borewells
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D
Use of Chemial fertilisers
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Solution
The correct option is C Digging of borewells A few decades ago, farmers relied on canals and tanks to irrigate their lands. Extensive digging of borewells lead to the depletion of groundwater levels and increased the dependence on rainfall substancially.