Which of the following risk factors can have an immediate impact on a person's health? A. eating too much junk food B. not exercising for at least 30 minutes a day C. not wearing a seat belt while driving D. smoking cigarette

it all depends truly as you say because

Explanation:

A=eating too much junk food can effect our health.

B=not exercising also harms us and make us lazy and unhealthy.

C=not wearing sit belt in car can create accident.

D=smoking not only harms you that effect air environment and creates deaseas like lung cancers etc.

"hope it helps you "but in my view D no is right

gynecologist i believe

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.