Across
- 2. a protected building or place that is generally used by the military as a stronghold
- 4. force on or against something
- 6. a combustible black or dark brown rock
- 10. forces that destroy or tear down existing formations
- 14. an area, region, or country that is controlled and settled by people from another country
- 15. to move forward
- 16. the law-making branch of the American government that is made up of the House of Representatives and the Senate
- 19. a viscous liquid derived from petroleum
Down
- 1. forces that build up an existing landform or create a new one
- 3. a person from one country who moves to another country to live
- 5. a machine for producing continuous power
- 7. growing or living in or often found in water
- 8. to move from one place to another to live
- 9. decaying or rotting
- 11. freedom from the control of a person or group of people
- 12. control or make use of
- 13. a person appointed by the king to oversee a region or colony
- 15. a nation that promises to help another nation in wartime
- 17. flammable gas consisting of methane and other hydrocarbons
- 18. a group of countries or territories, ruled by an all-powerful authority, such as a monarch