Across
- 5. , extreme scarcity of food
- 8. , boomerang shaped region in the Middle East
- 10. , the contamination of water sources
- 12. , the state of being scarce
Down
- 1. , the number of individuals per unit geographic area
- 2. , the process of removing salt from seawater
- 3. , a natural fuel
- 4. , a region of earth with specified conditions
- 6. , the supply of water to land or crops to help growth
- 7. , suitable for growing crops
- 9. , having little or no rain
- 11. an underground layer where the material contains