Acquired Reactive Perforating Dermatosis Last updated July 12, 2017 Reactive Perforating Collagenosis (RPC) is a very rare skin disorder that can manifest during early childhood or adulthood.
Fog is a mixture because it is an aerosol of water droplets or ice crystals in air. Fog can also contain molecules of acids or ammonia. Continue Reading
The processes forming it, however, are usually different from those that form clouds. Like clouds, fog is made up of condensed water droplets which are the result of the air being cooled to the point (actually, the dewpoint) where it can no longer hold all of the water vapor it contains.