Question

how many chemicals in tobacco products have been proven to cause cancer?
a 30
b 60
c 1,000
d 4,000
please select the best answer from the choices provided

Explanation:

Tobacco products contain numerous chemicals, and research has shown that approximately 60 of them are proven to cause cancer. This is a well - established fact in the field of medicine and health (a sub - field of Natural Science) related to the study of carcinogens in tobacco.

Answer:

B. 60