i dont know and dont CARE
Thermal Inversion
Sifting the flour into your mixing bowl traps flour into it.
Some Primary pollutants are like when humans directly put them in the air Secondary pollutants are like when pollutants react with Primary and other Primary pollutants.
they are Gaseous
Air pollutants.
Primary pollutants are pollutants that enters the air directly from a source and Secondary pollutants are air pollutantsproduced by the reaction of a primary pollutant with some other pollutant
there are many pollutants. These are greenhouse gases.
smog=smoke+fog bad gases are mixing with the breathable air. if it gets bad enough, when it rains the water collects the pollutants making "acid rain" which corrodes whatever the rain falls on.
it traps particles such as dust and pollen
Primary air pollutants are emitted directly into atmosphere from a process such as exhaust from a engine, industries, volcanic eruption Secondary air pollution are formed in the air when primary pollutants interact.
Natural processes will eventually remove air pollutants, if we stop inputting them at such massive levels. The prospect of removing air pollutants is interesting and seems favorable, but is ultimately myopic. What happens even if we can suddenly remove pollutants from the air? Where can we put them? In the ground? This would undoubtedly engender new issues. No, the question is not how to remove air pollutants, but how to live without producing them.
Reducing pollutants in the air.