This document discusses key concepts in population geography including birthrate, mortality rate, infant mortality rate, population pyramids, population distribution factors like habitable lands and arable lands, migration push and pull factors, and population density and carrying capacity. Population pyramids can show the effects of events like wars or famines on a population over time. Most populations are heavily concentrated along coastlines and rivers, which provide suitable climate and vegetation for living, as well as good land for farming.

1. Population Geography Ch. 4, Sec. 2

3. Birthrate - # of live births/ 1000 people Average – 22/1000 Mortality rate - # of deaths/ 1000 people Does not represent the health of a nation Infant mortality rate - # of deaths among infants under 1 year old/ 1000 live births birthrate – mortality rate = Rate of natural increase

4. Population Pyramid Divides people by age and gender Can see the affects of wars, famines, or epidemics in a population

6. Population Distribution Habitable lands – have suitable climate and vegetation for living Heavily populated along rivers and coast lines Arable lands – land good for farming Migration Push – Pull factors Push = cause people to leave Pull = draws people in

7. Population Density Average # of people who live in a measurable area (square mile) Not accurate when looking at large areas Carrying capacity - # of organisms (people, animals, plants) a piece of land can support