Across
- 3. irrigation - watering crops slowly through small tubes to save water
- 4. security - when people has enough safe, healthy food
- 5. water - water stored under the earths surface
- 8. resources - can be replaced naturally like sunlight or forest
- 9. - a natural underground water storage
- 10. water - ancient water trapped underground for thousands of years.
Down
- 1. - growing plants without soil, using nutrient, rich water
- 2. - things we use to live, work, and grow
- 6. - removing salt from sea water to make it drinkable
- 7. - supplying water to crops to help them grow