Across
- 4. It's the case of some species
- 5. Best ecological means of transport
- 7. Day to honor the earth
- 9. We must save it
- 10. A group of trees
Down
- 1. Action in favour of the environment
- 2. We need it to drink
- 3. Act of giving a second life to objects
- 6. Rocks in the Australian sea formed by the growth of coral
- 8. The color of the environment