Question

The contamination of air with harmful substances is called ______________ ________________ .

Answer 1

Air pollution:

• Air pollution refers to the release of pollutants into the air.
• Also, it refers to any physical, chemical, or biological change in the air.
• It is the contamination of air by harmful gases, dust, and smoke that affects plants, animals, and humans drastically.
• There is a certain percentage of gases present in the atmosphere.
• Moreover, the phrase "air pollutant" refers to any radioactive (including source material, special nuclear material, and byproduct material) substance or matter that is discharged into or otherwise enters the ambient air, as well as any combination of such agents.

Hence, the contamination of air with harmful substances is called air pollutants.