Final answer:
High-altitude, delicate, feather-like, white clouds are known as cirrus clouds. They are made up of ice crystals and reflect changing weather conditions. Other cloud types, like cumulus clouds, are caused by water vapor rising due to convection.
Step-by-step explanation:
Delicate, feather-like, white clouds occurring at a very high altitude are termed as cirrus clouds. These clouds are made up of ice crystals and typically occur in fair weather, signaling that rain or snow could follow within several hours. An example of cirrus clouds from another planet would be the bright, narrow clouds found in the atmosphere of Neptune, which are made of methane ice crystals.
The formation of these clouds is influenced by the wind patterns and weather conditions of a particular region. The winds in atmospheres have regions of high and low pressure, and air flows between these regions, setting up wind patterns. Changes in these cloud patterns indicate wind speeds and track atmospheric circulation.
On Earth, other types of clouds can also form such as cumulus clouds, which are caused by water vapor that rises due to convection.
Learn more about Cirrus Clouds