what tobacco plant is used for cigarettes Nicotiana tabacum (cultivated tobacco): Go Botany Nicotiana tabacum - Wikipedia
Description
24 Incomplete combustion means that the reactions produce products other than oxygen, water and carbon dioxide, many of which are toxic
states, in addition to Guam, the Northern Mariana Islands and Puerto Rico, have laws that ban smoking in personal vehicles when children or adolescents are present, according to the CDC which tracks such legislation on its website
Well, it certainly doesn't seem black and white to me.

But while the biggest risk factor is cigarette smoking including secondhand smoke, other inhaled irritants can also cause damage to the lungs

27 Low birth weight (LBW) is associated with adverse health and developmental outcomes
It was virtually impossible to handle without casualties
