7 - 1. SECTION 7. EXCAVATION AND BACKFILL FOR PIPELINES. 7.1 GENERAL. The work covered by this specification consists of furnishing all labor, tools, materials, equipment, and performance of all operations in connection with the excavation, trenching, and. backfilling for underground pipelines and appurtenances.
Originally, the term was used to mean government by a body of priests. Currently, a hierarchy is used to denote any body of individuals arranged or classified according to capacity, authority, position, or rank.
Definition of Social Hierarchy. Social hierarchy is an implicit or explicit rank order of individuals or groups with respect. to a valued social dimension. We use the words implicit and explicit to capture the range of. awareness that people have of the hierarchies in which they are embedded.