for example , the farmland of chinese states feeds the united front and several other parts of the europe , and india ' s irrigation systems have enabled that continent to be self - sufficient in livestock production around 1974 . in addition , in other sides of the usa generators have helped to remedy earth - threatening problems such as poverty from absence of industrial development , famine as a result of conflict , losses from floods , and also sickness from lack of potable water supplies .
Dam building prevents life-threatening situations.