human
I'm interested in learning more about the different kinds of clouds. Can you tell me more about them?
assistant
Clouds are made up of tiny water droplets or ice crystals that form when air is cooled rapidly. They can be divided into two categories, low and high altitude clouds. Low-level clouds are typically composed of cumulus clouds which are puffy and often produce rain or snow. High altitude clouds include cirrus, stratus, and altocumulus clouds. These clouds are usually thin and spread out across the sky, forming a layer that blocks sunlight from reaching the ground.