Across
- 3. to make air, water, soil dirty
- 4. to preserve
- 6. a product that doesnt give harm to the environment
- 8. a natural environment of an animal
- 9. garbage
Down
- 1. to damage something so badly
- 2. to use too much of something
- 4. a large round object in space
- 5. energy that comes from the Sun
- 7. a glass object which produces light from electricty