Which subject is NOT studied by demography?
A. Birthrates, death rates, sex rates
B. Age groups, marriage incidence, divorce frequency
C. Human mobility
D. Rockforming, landshaping, soilforming
Answer:D
Which subject is NOT studied by demography?
A. Birthrates, death rates, sex rates B. Age groups, marriage incidence, divorce frequency C. Human mobility D. Rockforming, landshaping, soilforming