1 You are adding or replacing a split-system heat pump or central air conditioner.  An evaporator coil is the part of a heat pump or air conditioning system that becomes cold when the unit operates (or warm for a heat pump in winter). It is mounted in (or connected inline with) the ductwork of the home.
Sociology is the study of human social behavior and human association and results of social activity (study of group interaction, culture, etc. and all that they entail). Criminology is the study of crime as an individual and social phenomenon and is often viewed in context of social institutions.
As such, sociology provides a complement to the more individually focused discipline of psychology. Sociology is a social science, where divisions between the disciplines are not clear cut, and they share common interests, concepts and methods (Giddens, 1997). Sociology is perhaps closest to anthropology.