Across
- 3. the largest environmental unit
- 4. element with 8 protons
- 7. many of the one
- 9. element with 6 protons
- 10. when there are many of the 'lots of groups'
- 11. the one
- 14. a group of the many
- 16. consume what the producers produce
- 17. relating to dihydrogen monoxide
- 18. living organisms and non-living components within an environment
Down
- 1. converting solar energy into sugars
- 2. things done by the natural environment that aid us
- 5. lots of groups
- 6. our link to the environment
- 8. non-living component
- 12. natural products converted by humans for use
- 13. alternative term for regulating services
- 15. process in which producers make food via solar energy