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Biology miscellaneous

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Biology miscellaneous
  1. Identify the correct stateme-nt with respect to Biogas.
    1. Mixture of gases from volcanoes
    2. Gas produced from certain crude oil wells
    3. Gas produced by incomplete combustion of biomass
    4. Gas produced by fermen-tation of biomass
Correct Option: D

Biogas is produced by the anaerobic digestion or fermentation of biodegradable materials such as biomass, manure, sewage, municipal waste, green waste, plant material, and crops. Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.


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