Across
- 4. safe drinking water.
- 6. (two words) A type of energy For eg., solar power and wind power, that is not harmful to the environment.
- 9. the study of living things and how they interact with their environment, a branch of biology.
- 11. to reduce your consumption of non sustainable items (hint the definition includes a word in the crossword :)}.
- 14. a person who is an expert in natural history.
- 15. the act of using something several times.
- 16. (two words)a chemical compound which occurs naturally on the earths surface, but is produced in mass quantities by human activity on earth, causing the greenhouse gas effect.
- 18. (two words)combustible organic material, made from the remains of former life.
- 19. water that is not safe to drink (hint: antonym).
- 21. the capacity of the earths natural resources to regenerate itself given human interaction.
Down
- 1. the name for someone who is active for a cause eg. environmental.
- 2. an element that is present in all living things
- 3. do not break down, re use products in their original form to create something new, also known as repurposing.
- 5. the act of saying no.
- 7. capable of decaying naturally.
- 8. (two words)neutral a built structure which produces no carbon dioxide.
- 10. a system based on balancing humans and the environment, not harmful to the environment.
- 12. to consume a good or service, including all natural resources and energy alike.
- 13. things like wood, oil, minerals, rock etc.
- 15. breaking down old products to form something new
- 17. to consume or use carelessly or with no returns
- 20. the amount of living matter on a given habitat.