Across
- 3. variety of life in a habitat or ecosystem
- 5. community of living organisms
- 8. maintaining something without depletion
- 9. to use an item again after it has been used once
Down
- 1. harmful substances that contaminate the earth
- 2. organic material for decomposition and fertiliser
- 4. to convert waste into reusable material
- 6. to use less of something to create less waste
- 7. to protect and preserve natural resources