| 21. | The requirement that the biofuel sources should be sustainable is also important.
|
| 22. | The biofuel is sent to a refinery or storage site.
|
| 23. | There is significant research in algaculture methods to make biofuel from algae.
|
| 24. | The rise in vegetable oil prices is largely attributed to biofuel demand.
|
| 25. | The increasing use of biofuel has introduced another challenge in fuel management.
|
| 26. | The Nimitz also used 200, 000 gallons of HRJ5 jet biofuel.
|
| 27. | The effect of biofuel production on other food crop prices is indirect.
|
| 28. | Cellulosic ethanol and cellulosic diesel met the " cellulosic biofuel " standard.
|
| 29. | :" oil from air " is called biofuel or simply firewood.
|
| 30. | Aeroplanes, trains, and ships now run on biofuel.
|
