Across
- 3. The exchange of goods
- 6. Permanently frozen water in the soil
- 11. The practice of farming
- 12. When the sun is directly over the equator, (only happens twice a year.)
- 13. A device that shows you direction
- 14. Vertical lines on the earth
- 17. Another name for a city
- 18. Long term weather conditions
- 19. The vertical line that separates time zones
- 20. The horizontal line that separates the hemispheres
Down
- 1. Tropical storm that is like a small tornado
- 2. The effect that traps gasses in the atmosphere
- 4. All the inhabitants of a specific area
- 5. Horizontal lines across the earth
- 7. A place that is disconnected from the world
- 8. The plant and animal life
- 9. Another name for town
- 10. The study of life forms in their environment
- 15. The production of goods within the economy
- 16. The production of trades