Across
- 3. Containing elements from all over the world.
- 6. Study of Earth's surfaces.
- 8. Animal used for desert travel.
- 9. Mineral left behind by ancient sea water.
- 10. Water source in a desert.
- 11. Keeping food cold to preserve it.
- 13. World's largest hot desert.
Down
- 1. Support given by a patron.
- 2. Valuable yellow metal
- 3. Groups traveling together for safety.
- 4. Taming animals for human use.
- 5. North African desert tribespeople.
- 7. A major world religion.
- 12. How goods and services are produced/shared.