When you can't touch it.
Cumulus Clouds
A high-altitude cloud made up of smaller clouds is called a cirrocumulus cloud. These clouds are made up of tiny cloudlets and appear as white patches or ripples in the sky. Cirrocumulus clouds are often associated with fair weather, but they can also indicate the approach of a weather change.
A cirrus cloud is a high-altitude cloud that forms in the troposphere. It is composed of ice crystals and has a wispy, feathery appearance. Cirrus clouds often indicate fair weather but can also precede a change in the weather.
cirrus
High cloud, middle cloud, low cloud, and anvil heat.
This depends on how high up they are.
Cirrus clouds are thin wispy clouds. They are over 6 kilometers up. It is freezing up there, so they are made of ice crystals. They can mean bad weather is on the way.
A cloud has a low mass but a high volume. Despite being large and fluffy, the individual water droplets or ice crystals that make up a cloud are incredibly light.
Our everyday physical experiences, such as feeling the weight and texture of objects, tell us that we are not holding a cloud because clouds are made of water vapor high up in the sky, too far away for us to touch. We learn this through observations and education about the atmosphere and weather patterns.
yes, it is made up of "water vapour" and water is matter too. Matter is just "stuff"
The electron cloud makes up most of the size of an atom. Electrons are found in regions around the nucleus, and their movement creates a cloud-like structure that extends far beyond the nucleus itself.
That depends how far it has climbed up the garden wall.