Across
- 2. song of Britney Spears
- 4. a mixture of smoke, gases, and chemicals
- 7. Fahrgemeinschaft
- 9. verrotten
- 12. opposite of reforestation
- 13. a long period of time when there is little or no rain
- 14. the act of covering something to stop heat
- 15. a chemical substance used to kill harmful insects, small animals, wild plants, and other unwanted organisms
Down
- 1. biologisch abbaubar
- 3. schadstoffbelastet
- 5. Aufforstung
- 6. Clouds of toxic fumes escaped in a huge chemical factory blaze
- 7. a substance that causes cancer
- 8. the existence of a large number of different kinds of animals and plants
- 10. to use things like energy, fuel, materials, food, water, etc.
- 11. to spread a natural or chemical substance on land or plants
- 16. ausstoßen