Call your doctor at once if you have any of these serious side effects: 1  severe headache; 2  bloody urine, painful urination; 3  fever, chills, body aches, flu symptoms; 4  chest pain; 5  feeling short of breath, even with mild exertion; or.  swelling of your ankles or feet.
Biofuel is a product produced from biomass. As the biofuel definition above suggests, this fuel is considered much cleaner than petrol/diesel alternatives. Biofuel is considered carbon neutral, as the biomass absorbs roughly the same amount of carbon dioxide during growth, as when burnt.
Types of biofuels. Biofuels are energy carriers that store the energy derived from biomass.* [For a review of terminology relating to biofuels, see FAO (2004a) UBET â Unified Bioenergy Terminology. Rome.] A wide range of biomass sources can be used to produce bioenergy in a variety of forms.