for example , the fields of western farmers feed the southern kingdoms and some other parts of the world , and india ' s irrigation practices have enabled that country to be self - sufficient in agricultural production since 1974 . in addition , in many sides of the world dams have provided to tackle life - threatening problems such as poverty from deficiency of economic support , famine as a consequence of drought , relief from floods , and continued disease from lack of water water supplies .
Dam building prevents life-threatening situations.