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    Hi,
    So my AQA Biology Unit 3 exam is tomorrow and in a certain past paper it's asked me to describe the processes that take place in a biogas fermenter. The question was more than two marks so obviously I don't just say 'microorganisms anaerobically ferment plant material and this produces biogas which is mostly methane' or anything like that, I think it has to be more detailed. So basically could I have a detailed description of the processes that take place in a biogas fermenter? (Well, as detailed as a GCSE answer would need to be). Thanks! ☺️
 
 
 
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Updated: May 11, 2015

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