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Question

Among the following fuels of energy, which is the most environment friendly?

This question was previously asked in
UGC NET 2016 Paper 2 Management Question Paper (22-Jan-2017)
The correct answer is

Hydrogen

To determine which fuel is the most environmentally friendly, we need to analyze the environmental impact and emissions associated with each option:

  1. Ethanol: Ethanol is a biofuel produced from plant materials. It is considered renewable because plants can be regrown. However, burning ethanol releases carbon dioxide (CO₂), although it can potentially result in less greenhouse gas production compared to fossil fuels. The production process can also affect land use and biodiversity negatively.
  2. Biogas: Biogas is produced through the anaerobic digestion of organic material such as manure and plant waste. This process captures methane, a potent greenhouse gas, and uses it as fuel. Biogas can help reduce emissions, but depending on the source material and production methods, there might still be some environmental impact.
  3. CNG (Compressed Natural Gas): CNG is a fossil fuel that consists primarily of methane. It burns cleaner than other fossil fuels, with reduced emissions of nitrogen oxides (NOx) and particulate matter. However, it is still a non-renewable source and contributes to greenhouse gas emissions.
  4. Hydrogen: Hydrogen fuel, especially when produced via electrolysis using renewable energy sources, generates only water as a byproduct when used in fuel cells. This makes it highly efficient and clean, as it does not emit CO₂ or other harmful pollutants during use.

In conclusion, Hydrogen is widely recognized as the most environmentally friendly fuel among the options listed when considering its potential for zero emissions at the point of use and its ability to be produced sustainably.

Therefore, the correct answer is Hydrogen.

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Similar Questions

  1. Arrange the following Earth's water compartments in increasing order of the amount of the water they hold.
    A. Rivers and streams
    B. Fresh lakes
    C. Atmosphere
    D. Ice and Snow
    Choose the correct answer from the following options given below :

  2. Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

     Assertion A : Although internal-combustion engines used in today's vehicles can be adapted to burn hydrogen, hydrogen powered combustion engines probably are not the future of hydrogen fuelled vehicles. 

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    In the light of the above statements, choose the correct answer from the options given below : 

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Important Questions from Natural and Energy Resources

  1. Natural resources includes

  2. _______ energy is produced from uranium and thorium.

  3. How are resources classified on the basis of status of development?

  4. How are resources divided on the basis of status of development?

  5. Which one of the following is not a fossil fuel?

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