Which of the following conditions is most important in establishing a temperature inversion a layer of cold air over one of warm air two layers of warm air next to each other a layer of warm air over a layer of cold air two layers of warm air one on top of the other

the following condition that is the most important to establish a temperature inversion is a layer of warm air on top of a cold one. A temperature inversion is simply a thin layer of air where instead of having a normal decrease in temperature as one goes higher, it switches and has an increase as you elevate.