| A | B |
|---|
| replacement level | average number of children each parent must have in order to oreplace themselves in the population |
| industrial and scientific | revolutions that brought about changes that caused exponential growth of the world human population |
| arable land | a shortage of this can decrease the food supply available to a growing population |
| demography | study of human population patterns |
| population pyramid | helps demographers predict which age groups will experience the most growth |
| exponential growth | human population has grown faster and faster therefore has experienced this |
| survivorship | percentage of members of a group that are likely to survive at any given age |
| public advertising, economic incentives and legal punishments | strategies that can slow population growth |
| demographers | people who study and make predictions about human populations |
| more food and better hygiene | factors that contributed to exponential growth of human population |
| immigration | the movement of people into an area |
| infrastructure | roads, bridges, sewers |
| urbanization | more people living in cities than rural areas |
| developed countries | have higher incomes and more diverse economics |
