under ground tanks

We ALL know water and land are a problem yes.What need to be done is to dig and build big tanks under ground in which water from both the sky that in ground can be collected to,at the same time the piece of land being used what is appropriate.The river streams will be directed to those big takes.This will help since during NO rains under ground water will keep entering the tank and by so doing shortage of water problem will be solved.At same time the will be less/NO evaporation....



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Idea No. 511