Question

Q. 4. What are the bad effects of too much
use of tube wells for irrigation ?


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Answer 1

Answer:

Lowering of the Water Table. Excessive pumping can lower the groundwater table, and cause wells to no longer be able to reach groundwater.

Increased Costs. ...

Reduced Surface Water Supplies. ...

Land Subsidence. ...

Water Quality Concerns.

Explanation:

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Answer 2

1) Tube well irrigation system is a type is a system in which water is supplied to the fields by connecting large pipes 100-200 mm. The main disadvantage is it leads to depletion of groundwater due to which groundwater reserves may get exhausted.

2) The well may dry up and may be rendered useless for irrigation if excessive water is taken out. 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.