for another , the fields of western farmers feed the united states and several other parts of the world , and india ' s irrigation systems have equipped that countries to be self - sufficient in food production throughout 1974 . in addition , in many parts of the nation dams have helped to remedy life - threatened problems such as poverty from lack of economic progress , disaster as a result of drought , destruction from floods , and continued disease from lack of potable energy supplies .
Dam building prevents life-threatening situations.