Across
- 3. biofuels are more ... friendly than petrol
- 8. this is produced when there is a fire
- 10. to be able to be recycled
- 11. to totally use up
- 12. demand for ... - friendly hybrid cars is soaring
- 13. toxic gases from cars which aren't good to breath in
- 14. fuel sources that won't run out are
- 16. an adjective meaning from the sun
- 17. the power produced from the nucleus of an atom
- 18. causing little or no damage to the environment
Down
- 1. people talk about reducing their carbon
- 2. a bettery that can be reused
- 4. to use fuel, energy or time in large amounts
- 5. prefix connected with water
- 6. to produce (energy)
- 7. a different option
- 9. coal, gas, oil are
- 15. most UK household electricity is used for this