Fog is composed of droplets of water, or ice crystals, formed by condensation or crystallization of water vapor in the air.
(Fog; is composed; of droplets of water, or ice crystals) (Fog; formed; by condensation or crystallization of water vapor in the air)
Fog Fog
is composed formed
of droplets of water, or ice crystals
by condensation or crystallization of water vapor in the air