The fall of the roman empire was not due to one event but due to many events combined. what does it mean by saying this

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.

raymond can buy special closed cooling containers or a semi-truck with a air conditioned cooling system and an open box for the fruits,