Question

The gas that is obtained from cow dung is called ________.
A. Bio gas
B. Natural gas
C. Liquefied Petroleum Gas
D. Thermal gas

Answer 1

Hint: Cow dung which is also known as cow manure is the waste product or the feces of the Bovine animal species which include cattle, buffalo, yak, and water buffalo. Cow dung is rich in minerals and is often used as manure.

Complete answer:
- Option A: Biogas is a mixture of gases produced by the breakdown of organic matter like manure, agricultural waste, cow dung, biodegradable waste, etc. It is produced in the absence of oxygen and primarily contains methane and carbon dioxide. Cow dung is used to produce biogas which is used to generate electricity and heat. Hence, this is the correct option.
- Option B: Natural gas is a naturally occurring gas consisting primarily of methane and is formed when layers of decomposing plants and animals are exposed to high pressure and intense heat under the surface of the earth for millions of years. It is a fossil fuel. Hence, this is an incorrect option.
- Option C: Liquefied Petroleum Gas is a flammable mixture of gases that are produced by refining petroleum and is almost entirely made from fossil fuel sources. It is used to decrease the damage to the ozone layer and used as a fuel in heating and cooking appliances and vehicles. Hence, this is an incorrect option.
- Option D: Thermal gas is a thermal power station in which heat energy is converted into electric power. The heat energy is created from different heat sources like fossil fuels, solar energy, biofuels, etc. Hence, this is an incorrect option.

So, the correct answer is option A.

Note:When cow dung dries it is also used as a fuel, and sometimes as a mosquito repellent. It is also used as food by a wide range of animals and fungal species. It is the undigested residual matter which passes through animals.