What are natural sinks?
These areas are known as 'natural sinks'. Some of these natural sinks are forest cover (trees, vegetation), oceans, and soil to some extent, all of which have the ability to take in carbon dioxide. ... Trees and other land plants absorb carbon dioxide and serve as a storehouse, or 'sink', of carbon.
Yes.
A lot of substances are not air pollutant. You must specify which kind of substance do you refer as a probable air pollutant.
pollution
primary pollution
yes, when it is released in large amounts than the normal natural percentage in air
No, n2 (nitrogen gas) is not considered an air pollutant.
In natural convection, cold air sinks because it is denser than hot air. As the cold air sinks, it displaces the hot air, which then rises. This creates a continuous flow of air from cold to hot, allowing for heat transfer between the two air masses.
Yes, nitrogen dioxide is considered an air pollutant.
no
"lead" is the air pollutant that decreased most in 1970 to 1991.
Ozone is considered to be the most common air pollutant in the United States.
Do you mean... natural Primary pollutant in the air and all the thick particulates.