Across
- 2. This is used as fuel for transportation.
- 6. Biodiesel is produced from oils or fats using this.
- 8. Which country has NOT vowed to use only 100% renewable energy by 2050?
- 9. Which forms of energy are ultimately derived from solar energy?
- 10. In which region winds are stronger and constant?
Down
- 1. It is not considered to be a source of renewable energy.
- 3. This country gets the highest percentage of its electricity from clean sources.
- 4. What is the main composition of biogas?
- 5. The first 100% solar powered airport in the world?
- 7. Which type of energy is expected make up the largest portion of the world's energy supply in the year 2040?