C. To provide educational programs to the public
D. To provide immunization programs to diagnose disease.
To provide reliable and sanitary systems of waste removal.
The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe.
I'm pretty sure it's to boost dental health. fluoride is used to prevent cavities and tooth decay, so i'm assuming its option 3.
Answer:
<em>Vaccination helps the body's immune system to build a defense mechanism to guard against the diseases.</em>
Hope its helpful :-)
