Question

Which are invisible pollutants known to you?

Answer 1

Pollution is the dissemination of airborne chemicals. These are categorized into several groups, one of which is both the visible and invisible contaminants. They are released from industries or factories by the fire. These contaminants are called pollutants.

Complete answer:
The environmental impact of invisible (gaseous pollutants). (Invisible pollutants such as $SO$ and $NO$ can combine to form acidic precipitation with water. Plants and animals can be harmed by acidic precipitation. $VOC$s and $CO$ are harmful both to the health and human health of animals.
It is possible to inhale particles deep into the lungs and cross over into the bloodstream. They can then travel around the body causing effects on many systems of the organ.
The smoke, fog, and the other suspended particles make up the smog. The engine, including cars, trucks, and others, emits the brown gas nitrogen dioxide. Aerosols are the white gas produced from vehicles, power plants, etc. Invisible contaminants are not visible to the naked eye, are emitted in the outer atmosphere and only if a certain amount of air is checked is considered to be present. Carbon monoxide, methane, etc. are an example of this pollutant.
When coal, oil, and gas are burned, carbon monoxide is a colorless gas that is emitted into the atmosphere. The flammable gas is methane, the greenhouse gas that causes global warming. But they are present in the atmosphere in very small quantities.

Note:
In humans, animals, plants, and other organisms, these pollutants may cause serious health effects. By causing obstruction in airways, limiting lung expansion, air pollutants such as nitrogen oxides, sulfur oxides, carbon monoxides can cause more disturbances to the working of the lungs.