Question.
Distinguish between Biogas and natural gas.
( Chapter - 3 Mineral and Power Resources, Cass 8 NCERT Resources and Development ( Geography) )
Answer.
Both biogas and natural gas are energy resources and both are relatively clean sources of energy resources, however, there are some differences between biogas and natural gas.
Following are the differences between biogas and natural gas:
Biogas is obtained from organic wastes such as dead plants, animal material, animal dung, and kitchen waste while natural gas is found along with petroleum deposits and when crude oil is extracted along with natural gas.
Biogas is produced by biological process [decomposition of organic waste by bacteria] while natural gas is produced by geological process.
Biogas is mainly a mixture of methane and carbon dioxide while natural gas is a mixture of methane and ethane.
Gobar gas is an example of biogas whereas LPG (Liquefied Petroleum Gas) and CNG (Compressed Natural Gas) are examples of natural gas.
Biogas is generally suitable for domestic use such as electricity, stoving, and heating, while natural gas is used for both domestic and industrial use [electricity generation].
Biogas is a renewable source of energy as it is obtained from organic waste whereas natural gas is a non-renewable source that takes millions of years to form.
Compared to natural gas, biogas is the most suitable and sustainable source of energy sources for rural areas.
There is a lot of potential for biogas in India, while India does not have much reserve of natural gas.
Biogas resources are more evenly distributed in India while natural gas resources are found only in limited areas of India such as Mumbai High, Cambay Basin, Godavari Delta, Krishna Delta, Assam, and Tripura.
Biogas is a non-conventional source of energy while natural gas is a Conventional source of energy.
Exploration of natural gas is a very difficult task whereas the production of biogas is an easy task.
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