for example , the fields of eastern farmers feed the 50 states and many other parts of the americas , and india ' s irrigation systems have enabled that country to be over - sufficient in food production throughout 1974 . in addition , in many parts of the earth generators have helped to remedy living - threatening conditions such as poverty from lack of economic progress , famine as a type of drought , devastation from floods , and continued diseases from failure of toilets water availability .
Dam building prevents life-threatening situations.