1.1 Importance of Water and Need for Control Demand Aspect: Water resources- critical to human society for their domestic, industrial as well as agricultural needs Low-cost supply of large quantities of water-one of the foundations of modern society Need for increased water supply-as the result of growing population and industrial expansion Water resources development- constructions of dams, reservoirs, river diversions, pipelines, and aqueducts to bring water from more distant, unpolluted sourcesDemand Aspect: Demand Aspect: ¾ Water resources Water resources – critical to human society for their domestic, industrial as well as agricultural needs ¾ Low-cost supply of large quantities of water cost supply of large quantities of water – one of the foundations of modern society ¾ Need for increased water supply Need for increased water supply – as the result of growing population and industrial expansion ¾ Water resources development Water resources development – constructions of dams, reservoirs, river diversions, pipelines, and aqueducts to bring water from more distant, unpolluted sources 1.1 Importance of Water and Need 1.1 Importance of Water and Need for Control for Control