cine imi poate traduce si mie acest text ?
By adout half of the u.s popilation lived in cities by 1980 about 80 precent lived in such laces . how did this come about?
Over the last half century american farming has become more mechanized so many farm workers have moved to urban areas . another source of urban population growth especially since 1945 , has been the migration to cities of black Americans and Hispanics. The consequence is that all the larger American cities have experienced an increase of relatively unskilled poor people for whom jobs are not readily available . that is why since the mid – 1960s many central areas experienced a decrease in population as subords grew.