Question

What type of fuel is suitable to avoid pollution?

• A. Firewood
• B. Coal
• C. Gas
• D. Cow dung Cake

Hint:

Cleanest to dirtiest fuels: Gas>Liquid fuels>Solid fuels. Gaseous fuels produce the least pollution due to complete combustion. For environmental protection, promote the use of clean fuels like LPG, natural gas, and renewable energy sources.

Answer 1

The Correct Option is C

To determine which type of fuel is suitable to avoid pollution, let's analyze the options provided:

1. Firewood: Burning firewood releases a significant amount of smoke and particulate matter into the air, contributing to air pollution. Therefore, it is not considered a clean fuel.
2. Coal: Coal combustion also emits a large amount of pollutants, including sulfur dioxide, nitrogen oxides, and particulate matter. This makes it a major source of air pollution and health hazards.
3. Gas: Natural gas (or LPG - Liquefied Petroleum Gas) burns more cleanly compared to firewood or coal. It emits fewer pollutants and is considered a cleaner alternative for cooking and heating. Hence, it is better for reducing pollution.
4. Cow dung Cake: While burning cow dung cakes releases fewer pollutants than coal, it still emits smoke and particulate matter. It is not as clean as gas.

Conclusion: Among the given options, Gas is the most suitable fuel to avoid pollution. It produces significantly fewer by-products compared to other conventional fuels, making it an environmentally friendly choice.