__________ is mostly produced from animal wastes and is commonly known as bio gas.

Biogas power plant

• Biogas is an environmentally-friendly, renewable energy source.
• It is produced when organic matter, such as food or animal waste, is broken down by microorganisms in the absence of oxygen, in a process called anaerobic digestion.
• In a biogas power plant, biomass is burned in a boiler to produce high-pressure steam. This steam flows over a series of turbine blades, causing them to rotate. The rotation of the turbine drives a generator, producing electricity.
• Bio methane is the primary component of biogas, which is produced from the anaerobic digestion of animal waste, organic waste, and agricultural residues.
• Biogas mainly consists of methane (CH₄) (50-75%), carbon dioxide (CO₂) (25-50%), and traces of other gases.
• Some of the most popular biomass choices are crop residues, municipal and industrial sewage, agricultural material, livestock manures, seaweed, food-processing, and paper wastes.