Across
- 1. A place where waste is buried underground
- 4. Chemicals used to kill pests that harm crops
- 7. Using resources in a way that doesn't deplete them for future generations
- 8. A layer in the atmosphere that protects us from the sun's harmful rays
- 10. Changing to fit new conditions, like animals in their environments
- 12. Protecting and preserving natural resources
- 13. Microscopic organisms that can cause diseases
- 15. Practices that promote cleanliness and health
Down
- 2. The place of farming and growing crops
- 3. Substances that make something impure or unsafe
- 5. Gases released into the air, often from vehicles and factories
- 6. Resources that can be replaced, like solar energy
- 9. The variety of life in a particular ecosystem
- 11. An underground layer of rock that holds water
- 14. Coming into contact with something, like chemicals or pollutants