Across
- 2. To use less of something to save resources.
- 4. To use an item again instead of throwing it away.
- 5. Living in a way that doesn't deplete the Earth's resources.
Down
- 1. Processing waste into new materials.
- 2. Energy from sources that never run out.
- 3. Turning food scraps into nutrient-rich soil.
- 6. Power generated from the sun.