Question

addictive drug, nicotine, stimulant, carcinogen, tar, carbon monoxide, smokeless tobacco, leukoplakia, nicotine withdrawal. nicotine substitute, environmental tobacco smoke (ets); maintain smoke, sidestream smoke,
__________ a thick, sticky, dark fluid produced when tobacco burns
__________ a colorless, odorless, and poisonous gas
________ ________ a substance that causes physiological or psychological dependence
__________ the additive drug found in tobacco leaves
__________ a drug that increases the action of the central nervous
__________ is a cancer substance
__________ thickened, white, leathery - looking spots on the inside of the mouth that can develop into oral cancer
__________ tobacco that is sniffed through the nose, held in the mouth, or chewed.

Explanation:

1. First blank: "a thick, sticky, dark fluid produced when tobacco burns"

From the list of terms, "tar" is defined as a thick, sticky, dark fluid produced when tobacco burns.

Among the terms, "carbon monoxide" is a colorless, odorless, and poisonous gas.

The term "Addictive drug" is defined as a substance that causes physiological or psychological dependence.

Answer:

Tar

2. Second blank: "a colorless, odorless, and poisonous gas"