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

answer; /// i believe that the correct answer is (a) administrative team;

what effect does exercise have on the nervous system?

the answer is c.