Across
- 3. A conceptual formula used to estimate human impact on the environment.
- 8. The number of deaths of children under one year of age per 1,000 live births.
- 9. A model that describes how countries move from high birth/death rates to low birth/death rates as they industrialize
- 10. The required to offset the average number of deaths in a population to keep the population size stable
- 12. The number of deaths per 1,000 people in a population per year.
- 13. A measure of how much biologically productive land and water an individual or population requires to produce the resources it consumes and to absorb its waste.
- 14. The idea that human population grows exponentially while food supply grows linearly, leading to eventual "overshoot" and collapse.
- 15. The average number of children a woman will have during her childbearing years.
- 16. The shift from rural to city living, which usually correlates with lower fertility rates.
Down
- 1. The maximum number of individuals of a species that an ecosystem can sustainably support without degrading the resource base.
- 2. A graphical illustration that shows the distribution of various age groups in a population, which helps predict future growth trends.
- 4. Factors that affect population growth based on its size (e.g., disease, food competition, waste buildup).
- 5. The number of live births per 1,000 people in a population per year.
- 6. The number of years it takes for a population to double in size.
- 7. Educational, social, and medical services that empower individuals to determine the number and spacing of their children.
- 11. Growth at a constant rate of increase per unit of time