Question

write a short note on biogas plant and fire extinguisher​

Answer 1

Answer:

A biogas plant is where biogas is produced by fermenting biomass. ... The fermentation residue left over from the substrates at the end of the process can be used as fertilizer. The biogas is produced by the microbacterial decomposition of the substrate in an oxygen-free environment, i.e. under anaerobic conditions.

Answer 2

Answer:

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A biogas plant is where biogas is produced by fermenting biomass. The substrate used for the production of this methane-containing gas usually consists of energy crops such as corn, or waste materials such as manure or food waste. This also allows the biogas to rise more easily. ...

A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user, or otherwise requires the expertise of a fire brigade.