Across
- 4. the weather
- 6. the kind of energy that can be used unlimitedly such as solar or wind power
- 8. 10 years
- 9. toxic gases that come from cars, factories, etc.
- 10. the kind of fuels than can be taken from the underground like gas, oil or coal
- 11. possibly, maybe
Down
- 1. the kind of energy that comes from the sun
- 2. limited
- 3. to make or create something
- 5. the machine that turns wind into electricity
- 6. to have no more
- 7. to use something completely
- 12. the kind of thing that can lights up