Across
- 3. Ups and down's of the Earth's surface
- 5. To promise that something will take place
- 9. Done by choice
- 12. A person who starts and runs a business
- 13. Make as large as possible
- 15. A community of living things and the surroundings in which they live
- 17. Something that is difficult
- 18. Having different forms or types
- 21. The physical surroundings
- 23. The height of an area above sea level
- 25. Type of government in which power flows between state and local governments and the national government
Down
- 1. The legal process of becoming a citizen
- 2. Order of dates in which events happens
- 4. Economic system in which people are free to control and own the means of production
- 6. The cost of passing up the second choice when making a decision
- 7. A flat drawing of all or part of the Earth's surface
- 8. The collection of information
- 10. A round model of the Earth
- 11. Money received
- 14. A system for breaking time into units and keeping track of those units
- 16. A tax on imports
- 19. Economic system in which buyers and sellers choose to do business with those who satisfy their needs and wants best
- 20. Natural feature of the Earth's land surface
- 22. Human-made goods that people use to produce goods and services
- 24. Procedures the government must follow that are established by law