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1.  Sub Topic- Rainwater Harvesting


                  RainwaterHarvesting
                          Thesystemofcollectingandstoringrainwater.
                          PrevalentandusefulinwaterdeficientregionssuchasRajasthananddrypartsof Gujarat.
                          Uses
                                 For recharging groundwater
                                 For domesticusage
                                 For irrigatingcrops
                          Roof-Top RainwaterHarvesting
                                 Rainwateriscollectedinundergroundtanksconnectedtotherooftop
                                  throughpipes.
                                 Rainfallingonrooftopstravelsdownthepipestothetanksandisstoredfor
                                  futureusage.
                                 Alsousedforrecharginghandpumpsandtubewells.
                                 MostcommonisthedesertdistrictsofRajasthan.
                  Bamboo Drip IrrigationSystem
                          PractisedinMeghalaya.
                          A 200-year oldsystem.
                          Waterfromthestreamsistappedusingbamboopipesandusedforirrigatingthe roots
                           ofplants.
                          Longbamboopipesareconnectedwitheachothertoformachainfromthestream to
                           thecrops.
                          Waterflowsthroughthepipesanddropsdirectlyatthesiteoftheplant.
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