Here's a breakdown:
* Particles: These are tiny pieces of solid or liquid matter that can be suspended in the air. Examples include dust, smoke, soot, and pollen.
* Gases: These are substances that exist in a gaseous state at room temperature. Examples include carbon dioxide, sulfur dioxide, nitrogen oxides, and ozone.
Pollution can come from a variety of sources, including:
* Industrial activities: Factories and power plants often release pollutants as byproducts of their operations.
* Transportation: Cars, trucks, buses, and airplanes release exhaust fumes containing pollutants.
* Agriculture: Agricultural activities, such as livestock farming and the use of fertilizers, can also release pollutants.
* Natural sources: Some pollutants, like volcanic eruptions and forest fires, are naturally occurring.
Pollution can have serious negative impacts on human health, the environment, and climate.