Free response · Unit 3 Beta

Population growth in Country V

Q3: Analyze an environmental problem with calculations · scientific calculator allowed · 10 points

The question

Name: ______________________   Date: ____________   Population growth in Country V (10 points)

Data

Country V in 2025

Population data for Country V, 2025 (invented data for practice)
MeasureValue
Population60 million
Crude birth rate (per 1,000 people per year)31
Crude death rate (per 1,000 people per year)7
Immigrants per year30,000
Emigrants per year150,000
Share of the population under 1540%
Total fertility rate (children per woman)4.0
  1. (a) Calculate the rate of natural increase of Country V in 2025, as a percent. Show your setup. [2 points]

  2. (b) Assume Country V’s rate of natural increase stays the same and no one moves in or out. Calculate the year in which Country V’s population will reach 120 million. Show your setup. [2 points]

  3. (c) Calculate Country V’s total population growth rate in 2025, as a percent, including both natural increase and migration. Show your setup. [2 points]

  4. (d) Suppose Country V’s total fertility rate falls quickly from 4.0 to 2.1. Explain why Country V’s population would most likely continue to grow for several decades. [2 points]

  5. (e) Propose a government policy, other than limiting the number of children a family may have, that would likely lower Country V’s crude birth rate, and explain how it would do so. [2 points]