Across
- 3. (a) not harmful to the environment
- 6. (a) at risk of extinction
- 8. (n) the variety of plant and animal life in a habitat
- 9. (n) natural reserves such as coal, oil, and gas
- 10. (n) a method of turning organic waste, such as food or plant matter, into nutrient-rich soil
Down
- 1. (n) a situation where there are too many people living in one area
- 2. (n) a site where waste is buried under the ground
- 4. (n) the protection and preservation of natural resources
- 5. (n) the process of converting waste materials into new products
- 7. (n) the removal of the top layer of soil that leads to land degradation