Across
- 3. Where you bury waste
- 5. Harmful substances that contaminate the environment.
- 6. Something that is no longer needed
- 7. Looking after our natural environment
- 9. To use less of something
- 10. To use something again
Down
- 1. To convert organic waste into a soil-like substance
- 2. The world around us
- 4. A substance that is found in all our oceans and seas
- 8. When you reuse something