Across
- 2. a gas that is absorbed from the air by plants
- 6. a gas that makes up one-fifth of the atmosphere of Earth
- 9. non-living things such as water and rocks
- 10. needed for healthy growth and development
- 11. where photosynthesis occurs
Down
- 1. breathe out
- 3. the process of how plants make their own food
- 4. the natural surroundings of an area
- 5. a groups of living and non-living things in an area
- 6. a living thing that carries out the five basic life functions
- 7. living or once alive things
- 8. a community of many different plants and animals that live in a specific region