Across
- 1. a fuel that comes from things that were once living
- 5. cannot be easily replaced
- 9. waste that is dangerous for thousands of years
- 10. uses the energy from flowing water to create electricity
Down
- 2. from the sun
- 3. water is dependent on rain
- 4. the wind and the sun
- 6. washing machines, computers, TVs that use solar power
- 7. free and will not run out from the environment
- 8. not many places to build a plant