Across
- 2. combines two power sources in one system
- 6. give an item a second life
- 7. transform into something usable
- 8. surroundings affected by human and natural activity
- 10. vehicle powered without conventional fuel combustion
- 11. element being emitted into the environment
- 12. state where emissions are balanced overall
- 13. why travel separately?
Down
- 1. our shared home
- 3. able to decompose naturally over time
- 4. practices that lower environmental harm
- 5. material often discarded but sometimes recoverable
- 6. lessen consumption level
- 9. common material with long-lasting environmental impact