Osha has approved sloping shoring and benching to be used as safety systems in which job

Both Sloping and Benching is used  excavations job (Archaeology)
Sloping and benching in this situation refer to the way they dig a certain archaeological site.
both of this method is used in order to avoid potential ruins to fall on top of the diggers of the sites.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.