SOC 001 Lecture Notes - Lecture 20: Rate Equation, Immigration, Birth Rate

• School: College of The Sequoias
• Department: Sociology (SOC)
• Course: SOC 001
• Professor: silva

Document Summary

Population growth was one of the most important trends in the 20th century. Since 1990 the world population has tripled it reached 1 billion in 1804, 6. 5 billion by 2005, and is expected to reach 9. 4 billion by. The world population explosion is continuing in poor countries demography the scientific study of human populations demography examines size, composition territorial distribution of population. Population a collection of people who share a geographical territory. Fertility level of reproduction in a society. Mortality the level of death in a society. Migration movement into and out of a country. Malthusian theory the belief that population is growing faster than the food supply. Vital statistics are gathered from census conducted every 10 years. The number of babies born in a particular society. Crude birth rate the number of live births per 1,000 population in a given year. The number of deaths in a population.