Question

What are the advantages of gobar gas over conventional utilization?
A. More efficient source of energy
B. Used as good fertilizer
C. Reduces the chances of spreading of pathogens
D. All of the above

Answer 1

Hint: The gobar gas or biogas is a green energy source. Usually, it is made up of cow dung waste and other kitchen and agricultural wastes. Utilization of organic waste degradation results in the production of biogas.

Complete answer:
Gobar gas or biogas is an eco-friendly source of energy and thus regarded as a green energy source. It is easy to make and can be used as a cheap energy and heat source for cooking in developing regions as it is a renewable source of energy. It is produced by the decomposition of organic matter in anaerobic or oxygen-deficient conditions. It does not produce any greenhouse gas and thus very safe to use. In the production process, many agricultural and organic wastes are used. The by-products of the processing unit of gobar gas are also used in various farming practices.

Option A is that biogas is a more efficient source of energy. It is true as biogas can be used for electricity as well as for cooking efficiently and cost-effectively. Moreover, it is safe to use as it releases very little or no amount of green-house gases like methane, carbon dioxide, and nitrous oxide.
Option B is used as a good fertilizer. It is also true as stated earlier that the by-products produced during the processing of biogas are used by farmers in their fields. The waste liquid that is collected from the manufacturing unit and the crushed organic waste which is no more of use in biogas production are used as organic fertilizers in fields.
Option C is that biogas reduces the chances of spreading of pathogens. The gobar gas is resistant to pathogens. Thus it prevents pathogenic growth and their spread.
Option D is that all of the above options are correct. It is true as all are the advantages of using gobar gas over any other gas.
Thus, the right option is D.

Note: Biogas is an environmentally friendly source of energy and thus it should be enhanced over large-scale productions. It is estimated that in India there are around 2 million households that operate gobar gas plants at their convenience.