The leading cause of limited water supplies is waste. overuse. water pollution. reduced precipitation.

The leading cause of limited water supply is water pollution. As the world goes more and more industrialized, more wastes are produced and are not treated and disposed properly. As we see many of the rivers are already dead due to the waste disposed by factories. Some groundwater sources are also contaminated due to eutrophication and bad sanitation implementation. Human activities are the source of these pollution. Also, water becomes more limited due to the increasing population and needs