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.
most social conflict theories of crime causation make the following fundamental assumptions 1. society is divided by conflict rather than integrated by consensus 2. society is made up of groups based on political and economic power 3. differences in social class, and in particular those arrangements within society that maintain class differences, are the focus for criminology study 4. powerful groups make laws that reflect and protect their interests