Question

biogas is prouduced in ____ areas​

Answer 1

Answer:

Animal manure, food scraps, wastewater, and sewage are all examples of organic matter that can produce biogas by anaerobic digestion. Due to the high content of methane in biogas (typically 50-75%) biogas is flammable, and therefore produces a deep blue flame, and can be used as an energy source.

Answer 2

Answer:

Compost heaps

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