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We all observe old wells which have dried up. Our elders say that about 25-30 years ago there was sufficient water in the wells, but now these have completely dried up. Select from the following the possible correct reasons for drying up of water in the wells. A. The lakes (ponds) in which rainwater used to collect are no longer there. B. The soil around the trees, well and nearby area is now covered with coal tar/cement. C. No one uses wells as there are taps in every house. D. A number of electric motor driven pumps have come up to draw underground water.

We all observe old wells which have dried up. Our elders say that about 25-30 years ago there was sufficient water in the wells, but now these have completely dried up. Select from the following the possible correct reasons for drying up of water in the wells. A. The lakes (ponds) in which rainwater used to collect are no longer there. B. The soil around the trees, well and nearby area is now covered with coal tar/cement. C. No one uses wells as there are taps in every house. D. A number of electric motor driven pumps have come up to draw underground water. Correct Answer A, B and D

Concept:

  • The supply of groundwater is not unlimited, nor it is always available in good quality.
  • Groundwater is accessed by wells.

Explanation:

The reasons for the drying up of water in wells are:

  • A lot of boring pumps in the nearby area.
  • Increase in usage.
  • The soil around the trees, well and nearby area is now covered with cement.
  • The increase in population also needs more use of water.
  • Wells are dumped with waste as they do not contain any more water.
  • The lakes in which rainwater used to collect are no longer there. 
  • Fewer trees in the nearby areas, means less rainfall, meaning less surface infiltration.

Key PointsA. The lakes (ponds) in which rainwater is used to collect are no longer there. - Correct

B. The soil around the trees, well and nearby area is now covered with coal tar/cement. - Correct

C. No one uses wells as there are taps in every house. - Incorrect

D. A number of electric motor driven pumps have come up to draw underground water. - Correct

Additional Information

Bawri: 

  • Bawri's are deep step wells built into the ground.
  • It was the traditional way of rainwater harvesting.
  • When it rains, the water accumulates in the tank.
  • They are built deep into the ground so that the water does not evaporate easily and can be used during water shortages.

Related Questions

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