NCERT Solutions for Class 10 Social Science Geography Chapter 3
Social Science Class 10 Geography
Water Resources 3
Important NCERT Questions Based on new NCERT Books for Session 2022-2023
Questions No: 3 Part: II
Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water.
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Modern adaptations of traditional rainwater harvesting method are being carried out in many parts of the country to conserve and store water. For example in Gendathur village in Mysore, Karnataka, nearly 200 households have installed the system of rainwater harvesting. Gendathur receives an annual precipitation of 1,000 mm, and with 80 per cent of collection efficiency and of about 10 fillings, every house can collect and use 50,000 litres of water annually. From the 20 houses, the net amount of rainrwater harvested annually comes to1,00,000 litres. Thus, the rainwater harvesting system is being carried out successfully in Gendathur which has earned the rare distinction of being rich in rainwater. In addition to Gendathur, tamil Nadu is the first and the only state in India which had made rooftop rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters. Thus, modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water. In Meghalaya, a 200-year-old system of tapping stream and spring water by using bamboo pipes, is prevalent. About 18-20 litres of water entres the bamboo pipe system, gets transported over hundreds of metres, and finally reduces to 20-80 drops per minute at the site of the plant.
Traditional methods of rainwater harvesting like ‘the rooftop method’ are becoming popular in India. In Gendathur village, Mysore, about 200 households have adopted the rooftop rainwater harvesting method, thereby making the village rich in rainwater. The state of Tamil Nadu has made it compulsory for all the houses to have rooftop rainwater harvesting structures. Defaulters are severely punished.
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