| Term | Definition |
| Population Distribution | how the population is spread out across the world |
| Population Density | number of people per square mile |
| Birth Rate | the number of babies born per 1000 people |
| Death rate | the number of deahs per 1000 people |
| when birth rates are higher then death rates... | the population increases |
| Life Expetancy | the average age of death in an area |
| The higher the life expectancy ... | the healthier(or more developed) a country is |
| Infant Mortality Rate | the number of babies that dies per 1000 babies |
| The lower the infant mortality rate... | the healthier(or more developed) a country is |
| Life Expectancy of the United States | 75 years |
| Sparsely populated | Contains a few people |
| Densley Populated | Contains many people |