Across
- 3. Percent of petroleum found here. p.251
- 4. Source for Tigris and Euphrates. p.248
- 6. Unrefined oil. p.251
- 7. Arabia Largest country on Arabian Peninsula. p.250
Down
- 1. Fine particles of soil. p.249
- 2. Means "land between the rivers." p.248
- 5. Ideal area for early agriculture. p.248
- 8. Process of redirecting water for crops. p.249
