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Water: The unique life insurance-By Nimal Wijesinghe Anuradhapura The recently completed Yan Oya reservoir with a capacity of 169,000 acre feet Source:Sundayobserver. According to legends, the origin of the planet earth is based on water. The evolution of living things and the destruction or the extinction had been water centric so often as witnessed by the ancient and present civilisations. The main aim of competitive space explorations is to find whether there is any evidence of availability of water in planetary systems to ensure the possibility of any life in them. Water is not an unlimited resource. Even though 70 percent of the planet earth is considered as the water globe, only three percent is fresh water. Two- thirds of fresh water is too unavailable for the use of humans due to having been trapped in glaciers or otherwise. Only one percent of the fresh water available for the use ...