Answers

2016-03-24T20:28:02+05:30
advantages:
1.its 
non polluting
2. it gets its energy from renewable sources
3. many jobs are created
4.green hose effect is reduced

disadvantages:
1. its unstable
2. 
biogas yields are lower due to the dilute nature of substrates
3.contains so many impurities
4.
little technology advancements


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