Question

What is not required in the formation of biogas in a biogas plant?
A. Water
B. Oxygen
C. Cow-dung
D. Anaerobic bacteria

Answer 1

Hint:Biogas formation is an anaerobic process which is processed in the presence of methane and carbon dioxide. Anaerobic organisms work in this process and use methane gas and carbon dioxide for the production of biogas.

Complete step-by-step solution:Biogas production is an anaerobic process. It is produced due to anaerobic digestion with methanogen or anaerobic organisms. These anaerobic organisms digest the material inside a closed system. Basically, they ferment the biodegradable materials. The anaerobic process is the process which is done in the absence of the oxygen. So, oxygen is not needed for the formation of the biogas.
Biogas can be explosive when it is mixed with air(oxygen) in some proportions. So, if we use oxygen with the biogas, it may explode. So, it also restricts the use of oxygen in the formation of biogas.
Hence, option B is correct.
Additional Information: - Biogas is the combination of methane and carbon dioxide gases. The oxidation of methane and carbon dioxide gases is known as biogas. It is used as a fuel. Biogas is a renewable energy source.
Biogas can be found in wetland soils, oceans, forest soils, termites and wild ruminants in nature. It can also be found at landfill sites.

Note:-
Anaerobic organisms are those organisms which work in the absence of oxygen. Anaerobic bacteria are not Anaerobic organisms. Cow-dung and water together makes the biodegradable materials. The biodegradable materials which are used for biogas – agricultural waste, manure, municipal waste, plant waste, green waste and food waste.