Across
- 1. Sun
- 5. Eating utensils
- 7. To hike in the mountain
- 9. Crisis
- 10. Energy source
- 11. To approve
- 12. Country; region
- 15. The Earth
Down
- 2. Heating
- 3. To regulate; rules and regulation
- 4. To protect
- 6. To recycle
- 8. Air; atmosphere
- 13. To economize; to save
- 14. To generate electricity