Across
- 3. To make something dirty or unclean.
- 4. A place that we live on
- 7. The natural home or environment of living things
- 9. To make something smaller in size
- 10. Convert into reusable material
Down
- 1. The general weather over a long period
- 2. To take away most of something
- 5. You can use many times
- 6. Worldwide
- 8. scientific knowledge