Across
- 3. what sphere is on the ground
- 6. Food security means food that is...
- 7. what sphere involves plants and animals
- 8. The ______ of food is a vegetarian diet
- 9. what sphere involves water
Down
- 1. What is happening to the number of farms
- 2. What do you call a garden on a rooftop
- 4. a farm that is vertical
- 5. what sphere is all around us