cigarettes. U.S. smoking rate hits an all-time low—but there's still work to do Menthol cigarette - Wikipedia

Exposure equivalency ratio The exposure equivalency ratio for each alcohol use category was determined by dividing the tobacco equivalency, which is the ratio of the number of cigarettes smoked to produce a similar health loss or harm for a persons alcohol use, by that persons number of drinks/day

Stay duration above 3 days qualifies for full allowance

Tobacco farming contributes significantly to deforestation, particularly in developing countries where vast areas of forest are cleared to grow tobacco plants

To better explain this, think of your sense of smell like a pianoit has a number of different keys, or receptors