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Water level is decreasing day by day which causes lots of problems. people give money for buying clean water and some are also suffers from famine. cities like delhi, mumbay etc are facing these problems. 
                                   Water shortage
Water is a vital necessity that all people need in order to survive. Without water, people could only go a few days to a few months before having serious health problems or even death.Today in the world the leading cause of the water shortage is the rising demand for water for the industries and agriculture ,Some of the water is being contaminated with pollutants. Agriculture is the biggest polluter in which the pollutants come from the fertilizers and pesticides used on the crops.