Clouds are a natural part of the atmosphere, they consist of water vapour, which generally speaking isn't harmful.
Yes. All clouds are in the atmosphere.
by trucks polluting smoke
No. The air is the atmosphere.
The highest concentration of non polluting ozone is in stratosphere. It is present in atmosphere.
Car fumes fills clouds with pollution polluting the water in the clouds creating changes in patterns
When it erupts, it releases a large amount of carbon dioxide into the atmosphere, polluting it.
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.