How has the internet revolutionized political campaigns?
a. it has drastically reduced the need for traditional forms of advertising.
b. it has increased foreign participation in elections.
c. it has increased competition between candidates.
d. it has enabled immediate communication between candidates and supporters.

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