It very much depends on the type of cloud you are thinking about. The three main cloud types are cumulus, stratus and cirrus. Cumulus and stratus clouds are made up of tiny water droplets and are generally below 8,000 feet above sea level. read more
The three main cloud types are cumulus, stratus and cirrus. Cumulus and stratus clouds are made up of tiny water droplets and are generally below 8,000 feet above sea level. Cirrus clouds are made up of ice particles and are generally higher than 10,000 feet where the air temperature is below zero degrees Celsius. read more
High clouds are primarily composed of ice crystals; Medium clouds are a mixture of water droplets (usually super-cooled) and ice crystals, in varying proportion, and low clouds primarily water droplets, but in individual cases these descriptions are probably simplistic. read more