"A dramatic example of the anti imagery debate took place in the in the eighth and ninth centuries CE. Based on the perception of the biblical prohibition, an assault was mounted against all religious images, and much of the existing artwork was destroyed in an effort to eradicate what was considered an evil practice."

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada