What are the main exhaust gases emitted from automobiles?

The main pollutants are carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, sulfur oxides, lead compounds and particulates.

The hazards are as follows:?

(1) Carbon monoxide causes death and carbon dioxide is the main cause of acid rain formation and the greenhouse effect?

(2) Nitrogen oxides are responsible for the formation of acid rain and photochemical smog?

(3) Hydrocarbons cause cancer?

(4) Sulfur oxides are responsible for the formation of acid rain?

(5) Lead compounds cause heavy metal poisoning?

(6) particles cause asthma and cancer