1. The UNWorld Population Prospects (WPP)projects population size for each nation from 2022 to 2100. Why does theWPPproject populations so far into the future? (select the answer that is most correct)

a. To provide long-term predictions about a population to help national governments plan

b. To increase the accuracy of the projection by using a larger sample of years

c. To illustrate the long-term consequences of different assumptions about population dynamics

2. A demographer projected the same population forward 10 years and forward 30 years. Which projection is most likely to match what actually happens in the population?

a. The 10-year projection

b. The 30-year projection

3. Which component of demographic change contributes the most uncertainty to projections of the global human population?

a. Fertility

b. Mortality

c. Migration

4. Population size always stabilizes in the final year to which a population is projected.

a. True

b. False

5. Policymakers and planners can improve the accuracy of population projections by: (choose one)

a. Providing better training for demographers

b. Supporting national and international efforts to collect more accurate demographic data

c. Insisting that all projections use the same set of assumptions