Because they're way up in the thermosphere. Cold.
Cirrus clouds are primarily made out of ice crystals.
Cirrus clouds
Cirrus clouds are made of ice crystals that have been carefully form over time
White clouds made of tiny ice particles are called cirrus clouds. These clouds are composed of ice crystals that form at high altitudes in the atmosphere. Cirrus clouds are thin and wispy in appearance.
cirrus
The clouds that are made of ice crystals are the cirrusclouds.
Ice
Thin feathery clouds are known as cirrus clouds. These types of clouds are composed of ice crystals and are found at high altitudes in the atmosphere. Cirrus clouds are often wispy in appearance and are associated with fair weather.
no cirrus clouds are.
cirrus
Cirrus clouds are thin, wispy and are composed of ice crystals. Cirrus clouds are the highest form of cloud, and do not usually cause precipitation.
true/yes