Drinking Water and fresh air are the unavoidable reasons for life. More than 70% of human body is composed by water. But unfortunately, only 3% of water available across the globe is fresh water and only half of that is available to humans. In developing countries like India, population growth combined with industrial development is hard pressing on water demand resulting in the shrinkage of water table.
originally found here:- http://www.sigmatest.org/Drinking-water-Testing-India.html