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.
Many theories have been developed to explain criminal behavior. While some theories are not as common, others have evolved and are used in many criminal studies today. Modern criminologists combine the most germane aspects of sociology, psychology, anthropology, and biological theories to advance their understanding of criminal behavior.