Question

What does gobar gas produced from animal and plant waste contain?
A. Ethane
B. Methane
C. Propane
D. Acetylene

Answer 1

Hint: It is the transparent and non-polluting gas which is widely used as a fuel. It is produced by anaerobic species.

Complete Answer:
- First we should know about biogas to answer this question. Raw materials such as compost, agricultural waste, municipal waste, sewage, plant material, renewable waste or food waste can be used to generate biogas.
- Biogas is an energy source that is renewable. It is also known as "Gobar Gas" in India. Biogas is created by methanogenic or anaerobic digestion by anaerobic species that digest material in a closed system or ferment biodegradable materials. This closed system is said as an anaerobic digester, bioreactor or biodigester.

Now, let us find the solution from the options-
- Biogas is often widely referred to as Gobar gas. Biogas is produced with the aid of microorganisms due to the anaerobic decomposition of organic waste matter from plants and animals. Biogas is composed of methane and carbon dioxide.
- Traces of hydrogen, helium, sulphide hydrogen and carbon monoxide are present.
- Methane, which accounts for 50-70%, is the main portion.

Thus, the correct answer is option B Methane.

Note: Biogas naturally recycles and transforms waste materials into usable electricity, thus eliminating any emissions generated by waste in landfills and reducing the impact of harmful chemicals emitted by wastewater treatment plants. During decomposition, biogas transforms the harmful methane gas that is generated into less hazardous carbon dioxide gas.