Across
- 5. Products that do not harm the environment
- 11. the processes of reprocessing waste paper for reuse
- 12. gases, ejected from an engine as waste products
- 14. to throw rubbish in inappropriate places
Down
- 1. A diversity in nature, among plants and animals
- 2. one who kills or takes wild animals illegally
- 3. to stop existing
- 4. an increase in temperature all-over the world, as a result of greenhouse effect
- 6. A category of animals or plans that might become extinct
- 7. energy resources like gas and oil
- 8. The cleanliness of the air we breathe
- 9. heating of the atmosphere due to the carbon dioxide and other gases
- 10. live a life that is closer to nature
- 13. poisonous rubbish, produced by industrial processes