Geography

5. Represents the breakdown of the population by gender and age at a given point in time.
7. A natural feature of the earth's surface.
10. The action or process of settling among and establishing control over the indigenous people of an area.
12. The process by which fertile land, becomes desert.
14. A state that completely surrounds another state.
15. A source area, innovation center, a place of origin of a major culture.

1. The removal of salt or other chemicals from something, such as seawater or soil.
2. based on historical population trends of two demographic characteristics.
3. A continental body consisting of the 55 member states that make up the countries of the African Continent.
4. Has several noncontiguous pieces of territory.
6. Founded in 1945 after the Second World War by 51 countries committed to maintaining international peace and security.
8. Almost or entirely surrounded by land; having no coastline or seaport.
9. The belief in or worship of more than one god.
11. Relatively equal distances from their center to any boundary much like a circle.
13. The doctrine or belief that there is only one God.