Energy Resources: Biogas Quiz

Fill in the gaps, then press 'Check'. This quiz has a word list:
   anaerobic      bacteria      cooking      landfill      methane      vehicles   
Biogas is a mixture containing . It is produced by the action of , digesting organic waste material in conditions.

The process can occur in digesters that we have built, or naturally underground in sites.

The gas can be used to power , and used for heating and in homes and businesses.