A) The people mainly save their water through rain water harvesting .In this method the people build a storage tank underground and when it rains the water through pipe from roof is collected in that tank and can be further used for various activities like watering plants ,cleaning home etc b)Different methods of rainwater harvesting is - 1 Rooftop rainwater harvesting 2 Surface run off rainwater harvesting 3 Rainwater harvesting through countor bonds