1. World Population The constant effort towards population… increases the number of people before the means of subsistence are increased. ~Thomas R. Malthus

2. Demography The study of human populations Birth rate- number of live births annually per 1000 people. Death rate- number of deaths annually per 1000 people. Fertility Rate- the average number of children born to each woman.

3. Population Growth Birth rate minus Death rate = Natural Growth Migration- the movement of people from place to place. Immigrants- people who move into a country. Immigrants- people who move into a country. Emigrants- people who leave a country to live elsewhere. Emigrants- people who leave a country to live elsewhere. http://www.census.gov/popclock/

4. Population Movement Push factors- negative things that repel people: wars, overcrowding, unemployment, crime, etc. Pull factors- positive things that attract people: jobs, cheap land, mild climate, cultural preferences, etc.

5. Annual Population Growth

7. Doubling Time The time it takes a population to double in size at its current growth rate.

8. Technology & Population

9. Historic Growth 7.2 Billion

11. Population Density The average number of people per square unit of land. country’s land area ÷ total population = pop. density

12. Population Distribution Population is unevenly distributed throughout the world due to natural obstacles, i.e. harsh climates, rugged terrain, etc.

13. Demographic Transition Model

14. Population Pyramids populationpyramid.net

15. Kerala & India

16. Population Pyramids RapidStabilizing Slow Negative

17. Utah Population Pyramid

18. Cache County 2010