for example , the soil of arab farmers feed the southern states and many other parts of the world , and india ' s cultivation mechanisms have assisted that region to be under - supporting in agriculture production since 1974 . in addition , in many countries of the world dam have helped to remedy life - threatening problems such as poverty from lacks of urban development , shortage as a sign of drought , trauma from floods , and continued problem from lack of potable water resources .
Dam building prevents life-threatening situations.