Selective optimization with compensation theory proposes that successful aging is related to three main factors. which of these factors is based on the concept that older adults have a reduced capacity and loss of functioning, which require a reduction in performance in most life domains?

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