| A | B |
| demography | the study of populations and their behavior |
| nomadic | wandering in constant search for food |
| urbanization | development and growth of cities |
| settlement patterns | where large numbers of people choose to live |
| population pyramid | a graph used to compare male and female populations at different ages |
| industrial revolution | shift from hand work to machine work |
| dot population map | dots are used to represent a certain number of people |
| population density map | shades and colors are used to show how many people live in a given area |
| shanty towns | places outside cities where people build their own houses using found materials |