In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.

AcademicChemistryNCERTClass 7

In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. It is so because :
  1. Excessive use of water in towns and cities depletes the groundwater.
  2. Towns and cities have asphalted roads and vast areas of soil are concreted. As a result, rainwater cannot percolate to recharge groundwater and the groundwater level further decreases. Villages have larger areas of open soil surface and fewer asphalted roads and concrete surfaces.

Thus, a larger soil surface area is available for rainwater to percolate into the soil easily and recharge the groundwater. As a result, even shallow bore wells yield water in the village. 

raja
Updated on 10-Oct-2022 13:21:54

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