Answer:
Nonsmokers are half as likely to develop cardiovascular disease.
Explanation:
Tobacco is highly hazardous to health, not only does it affect the respiratory system, but when the chemicals present in tobacco, such as nicotine or tar go into the blood through the lungs, they can cause severe damage to the circulatory system by thickening the arterial walls and thus reducing circulation.
Personal factors- heredity, age, sex, disability
Answer:
Explanation:the other person is correct
I believe calcium, iron, zinc are 3?