The population pyramid shown represents a community that has been affected by human migration. A. Explain ONE economic reason why people under the age of 50 are unlikely to migrate to this community.

B. Describe ONE social pull factor that would draw migrants who are over age 65 over long distances to the location shown in the pyramid.

C. Explain ONE reason why the population for females aged over 80 can be a slightly larger group than the women aged 75 to 79 population.

D. Explain the degree to which the population pyramid shown can be used to predict local needs for social welfare services.