Across
- 7. animals or plants which may soon not exist because there are very few now alive
- 9. the cutting down of trees in a large area
- 10. strong, unpleasant and sometimes dangerous gas; smokes
- 11. translation of "s'infiltrer", 'to ......'
- 12. to kill an animal for meat, 'to .........'
Down
- 1. synonym of the 'clothes, 'the ..........'
- 2. synonym of 'pollution'
- 3. garbage that requires careful disposal is called '........... waste'
- 4. solid excrement from animals, especially cattle and horses
- 5. oil in a natural state that has not yet been treated
- 6. the process by which land changes into desert
- 8. synonym of 'inhabitant'