a pollutant
a pollutant
co2
What substance or material that causes pollution
Pollution occurs when a substance is introduced into a waterway, soil, or air that is not a natural component. People are the cause of a majority of pollution problems.
CO2 Carbon Dioxide
CO2 Carbon Dioxide
pollutant
There are many such substances. Collectively this is known as pollution. Any substance can be a pollutant in the wrong place.
It is extremely difficult to control air pollution. This is because it is not a confined substance to try to control.
The general term for it is environmental pollution.
the presence of a substance in abnormal concetration.