Across
- 2. Ecosystems with water-saturated land important for wildlife
- 4. Organisms grown for food, like corn or wheat
- 6. Clean-burning fossil fuel
- 7. Living organisms like deer, birds, and frogs
- 8. Animals that live in water and have gills
- 10. Material needed for fertilizer, found in rocks and bones
- 12. Thick liquid from underground
- 14. Used to make steel
Down
- 1. On the brink of dying out forever
- 3. Large areas filled with trees that supply wood and habitat
- 5. Substances mined from the earth
- 9. Nutrient-rich material plants grow in
- 11. Energy from the sun that helps plants grow
- 13. Black rock formed by plants