Chapter 9 Environmental Science

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Across
  1. 4. The results of a demographers study of a group of people born at the same time and when each person dies.
  2. 5. The percentage of members of a group that are likely to survive to any given age.
  3. 8. The average number of children two parents must have in order to “replace” themselves in the population.
  4. 13. The death rate of infants less than a year old.
  5. 15. The basic facilities and services that support a community.
  6. 17. Resulted in a plan to stabilize population growth, especially through improvement in women's status.
  7. 19. The movement of people from rural areas to cities.
Down
  1. 1. The study of populations.
  2. 2. The distribution of ages in a specific population at a certain time.
  3. 3. Caused by many people working in the cities but moving into suburban areas around the cities.
  4. 6. Land that can be used to grow crops.
  5. 7. A model that describes how economic and social changes affect population growth rates.
  6. 9. Movement out of an area.
  7. 10. Countries that show few signs of development and may have increasing death rates while birth rates remain high.
  8. 11. Movement into an area.
  9. 12. The movement of individuals from area to another.
  10. 14. The average number of years members in a population are likely to live.
  11. 16. The average number of children a woman gives birth to in her lifetime
  12. 18. A type of double bar graph used for age structure.