What substance in tobacco products causes stained teeth and skin?

Question

1) nicotine
2)carbon monoxide
3)tar
4)menthol

I think #1

Thanks

Answer 1

tar also, probably the major cause.

Answer 2

yes it is tar

Answer 3

1. B and C
2. D
3. A
4. C
5. D
these are 100% right, I took the test

Answer 4

I did the test on my own, and checked the answers here, this boy/girl above me is correct I checked so its approved by me and...I just took the test .so yah GL Yall

Answer 5

but these are the answers to which questions.

Answer 6

I'll come back with the answers!!

Answer 7

1. The functions of the respiratory system are (select all that apply) - To deliver oxygen to the body - to remove carbon dioxide from the body.
2. The dome-shaped muscle that lies below the lungs and is important in the breathing process is the - diaphragm.
3. The exchange of carbon dioxide and oxygen takes place in the - alveoli.
4. ____ is a substance in tobacco products that causes stained teeth and skin - Tar
5. ____ is a substance in tobacco smoke that reduces the bloods ability to carry oxygen - Carbon monoxide
There you guy's go!!💗💗

Answer 8

(blank) is correct

Answer 9

[blank] is correct