Across
- 2. a large area covered with trees and undergrowth
- 6. a natural underground chamber in a cliff
- 9. a living organism that feeds on organic matter, a mammal
- 10. the branch of biology that deals with the relations of organisms to one another
Down
- 1. natural Earth and the things on it. the trees, birds and animals
- 3. an individual animal, plant,or single called life form
- 4. convert waste into reusable material
- 5. an opening in Earth's crust through which lava, volcanic ash, and gases escape
- 7. a large amount of water covering an area of land that is usually dry
- 8. period of dryness