for years , the fields of western farming feed the southern states and the other parts of the region , and india ' s irrigation technologies have enabled that country to be over - sufficient in food production around 1974 . in addition , in many areas of the us dams have contributed to combat life - threatening problems such as drought from lack of economic expansion , disaster as a result of famine , death from floods , and continued disease from insufficient of latrines water resources .
Dam building prevents life-threatening situations.