Answered
In Meteorology and Weather
What causes frost?
Frost usually forms when a surface cools through loss of heat to atemperature which is colder than the dewpoint of the air in contact(and around it) and the surface itself has… a temperature which ator below freezing point. An example is a store freezer. The insidesurface of the freezer is chilled below freezing point, when thefreezer is opened the warming air containing moisture hits thatsurface and freezes (MORE)