<human>: I'm interested in learning more about the different kinds of clouds. Can you tell me more about them?
<bot>: Clouds are made up of tiny water droplets or ice crystals that form when warm air rises and cools rapidly, forming a visible mass. They can take on many shapes and forms depending on their height and density. Some clouds may appear as puffy cumulus clouds, while others may be flat and thin stratus clouds. Other types of clouds include altocumulus clouds, cirrus clouds, cirrostratus clouds, and nimbostratus clouds. Each type of cloud has its own characteristics, such as size, shape, color, and movement.