Across
- 1. is the least polluting fuel for vehicles
- 3. renewable fuels derived from biological materials
- 5. is an example of exhaustible resources
- 6. is a machine that converts wind energy into electricity
- 10. is a good method of converting clean energy
Down
- 2. energy is heat from the earth
- 4. power houses with solar energy
- 7. resources are resources that dont run out
- 8. gives us solar energy
- 9. energy is produced from water waves