| Term | Definition |
| developing country | a poor country whose citizens mostly work in argiculture |
| life expectancy | the average number of years a person from a certain group lives |
| scarcity | inadequate supply or shortage |
| civil war | fight between a groups within a country |
| colony | overseas territory or settlement tied to a country |
| coral reef | structure formed by skeletons of sea animals |
| deforestation | widespread cutting of forests |
| desertification | process by which grasslands change to dessert |
| drought | long period of extreme dryness and water shortages |
| genocide | mass murder of a people because of their race,religion,ethnicity,
politics,or culture |
| immigrant | a person who moves to a new country to make a permanent home |
| imperialism | a system of building foreign empires for military and trade
advantages |
| indigenous | native to or originating from a place |
| industrialized country | a country in which a great deal of manufacturing occurs |
| literacy rate | a percentage of people who can read and wright |
| overgraze | to allow animals to strip areas so bare that plants cannot grow
back |
| refugee | a person who flees to another country to avoid persecution or
disaster |
| savanna | brad grassland with few trees found in the tropics |
| subsistence farm | small plot where a farmer grows only enough food to feed his
own family |
| natural resources | naturally occurring materials that can be used by humans |