Across
- 3. Destruction of the natural environment, especially when willfully done.
- 6. The action of clearing a wide area of trees.
- 7. A fuel derived directly from living matter.
- 8. Converting (waste) into reusable material.
- 10. The action or process of making or becoming acidic.
Down
- 1. A biological community of interacting organisms and their physical environment.
- 2. A substance used for destroying insects or other organisms harmful to cultivated plants or to animals.
- 4. A disease that can be transmitted to humans from animals.
- 5. A substance that is toxic to plants, used to destroy unwanted vegetation.
- 9. The variety of life in the world or in a particular habitat or ecosystem.