Name of the Teacher: ANU SREE.A.J from Govt.B.H.S.S, Mithirmala teaches a unit on Business Services for the subject Business Studies. The topic is the Nature of Services, which are defined as intangible activities that provide satisfaction but are not necessarily linked to products. There are five key features of services: they are intangible, inconsistent, have inseparable production and consumption, have little inventory, and involve customer participation.