The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
1234567890kskskskdjdididosose
Answer:
malai tnn. vvvbbv. cxggvcc luggfguhcg
Water, Milk, all natural juice.
http://www.nbchpn.org/pdf/NBCHPN_handbook.pdf
Your answer may be in there
