Across
- 6. cannot be replenished in a human lifetime
- 7. boundaries that separate nations
- 10. cloth
- 13. area of the country that is neither a state or part of a state
- 14. enough
- 18. air, water, and land that surround you
- 20. planned, careful use of natural resources
- 21. this industry develops aircraft, spacecraft, missiles and satellites
- 23. natural resources found in the earth
- 24. are of land defined by political boundaries
- 25. results from breakdown of organic, or once-living materials
- 28. a piece of land almost entirely surrounded by water
- 30. pattern of weather that a place experiences
Down
- 1. a general type of land on Earth above sea level
- 2. large area of moist land; often covered by shallow water
- 3. area is one that is not heavily populated.
- 4. a natural feature on the Earth's surface
- 5. lands with protection from other nations
- 8. materials found in nature that people use
- 9. a general type of land on Earth
- 11. a political unit within a nation
- 12. thickly settled region
- 15. can be replaced in a reasonable amount of time
- 16. refers to power, such as heat and electricity
- 17. buying and selling of goods and services
- 19. materials that dirty the air, water and soil
- 22. large landmass
- 26. sector part of the economy that does not produce things to sell but performs work to help others
- 27. a large area of flat highland
- 29. each state has its own