Question

How do nicotine and tobacco cause cancer?

Answer 1

Answer:

(B)  by damaging or changing a cell's DNA

Answer 2

Answer:

Many people link nicotine to cancer, especially lung cancer. Nicotine is one of many chemicals in raw tobacco leaves. It survives the manufacturing processes that produce cigarettes, cigars, and snuff. It is the addictive element in all forms of tobacco.

Researchers are looking at how nicotine contributes to the development of cancer. While it may be too early to say nicotine causes cancer, questions are being raised about how the chemical acts in non-tobacco forms like e-cigarettes and nicotine-replacement patches. Researchers are discovering that the connection between nicotine and cancer is more complicated than commonly thought.cancer-causing effects:

In small doses, nicotine speeds up cell growth. In larger doses, it’s poisonous to cells.