No. The air is the atmosphere.
Yes. All clouds are in the atmosphere.
a
Stratus clouds are generally the lowest clouds in the atmosphere, usually 1,000 - 2,000 feet up.
The clouds that we normally see, such as rain clouds, are in the Earth's atmosphere and therefore are not in space. However, there do exist clouds in space, which have been observed by astronomers. They do not have the same chemical composition as clouds in our atmosphere.
Ceres has no meaningful atmosphere, so no, it has no clouds.
Pluto has no atmosphere, so no clouds.
The moon has no atmosphere to support clouds.
they are called flationexary clouds
In a nutshell, yes. They are not a layer of the atmosphere, but since a cloud is humidity in the atmosphere I would call it a component that makes up our atmosphere.
stratosphere
The forming of water droplets and clouds in the atmosphere is referred to as condensation.
Mercury does not have clouds because its to close to the SUN.