Topic: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location- changes in critical geographical features (including waterbodies and ice-caps) and in flora and fauna and the effects of such changes.
1) Do you think artificial recharge of the groundwater can solve India’s groundwater crisis? Present your argument with suitable case study.(250 words)
Why this question:
The question is in the context of significance of artificial recharge of ground water in the times of increasing severity of ground water crisis. One has to examine the means and ways of recharging ground water with special emphasis of artificial recharge.
Key demands of the question:
The answer must provide for a detailed discussion as to how Artificial recharge of the groundwater can solve the issue substantially but not completely because of very high rate of groundwater exploitation.
Structure of the answer:
In a few introductory lines explain the significance of ground water, provide for some statistics highlighting the alarming depletion of ground water scenario in India.
Discuss the following aspects in the answer:
- The water scarcity is one of the major issue which is yet to not solve completely and depletion of the water table has become a major problem across the world. Demands for water increases as our population grow. Though 75% of the earth is covered by water, only a small percentage of it is fit for human use. The excessive demand has put a strain on our water resources. In many areas groundwater, which makes about 20% of our fresh water supply, is being used extensively for a variety of human, agriculture and industrial use. The recharge rate is much less than the rate at which the water is being pumped out.
- Discuss the effects of overexploitation – has a lot of environmental effects which include degradation of water quality, reduced quantity of water in wells and springs, and land subsidence to name a few.
- Explain the case of India – more prominent in areas with a high agriculture economy, though it is high in urban areas also.
- Case study – National Capital Delhi
- Significance of artificial recharge.
- What are the other methods?
- What can be done?
Conclude with significance of the water as a critical resource for life.