Secondary pollutants are more harmful than primary pollutants. true of false.

The statement is true. Secondary pollutants are formed from a recation of primary pollutants with the compounds present in the atmosphere. This includes ozone, smog, sulfur trioxide, acid rain, hydrogen peroxide, acetylnitrites. These compounds are modified products and are more damaging.

The statement is true. It is known as a "secondary" contamination since it is created when two essential toxins respond in daylight and stale air. These two essential contaminations are nitrogen oxides and unstable natural mixes. It is more harmful that the primary.