Cleanest fuel for energy 1. hydrogen 2. cng 3. ethanol 4. biogas
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Hydrogen is cleanest fuel for energy.
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The correct answer is option 3 - Ethanol.
Ethanol is an alcohol-based alternative fuel made by fermenting and distilling crops such as corn, barley or wheat. It can be blended with gasoline to increase octane levels and improve emissions quality. Renewable materials are used for making ethanol as fuel.
Hydrogen and CNG are also best available fuels to protect the environment. However, fuels using hydrogen come at a high price and the lack of fueling infrastructure and difficulty of producing it is not environmentally friendly and storing it in a fuel tank is extremely hazardous. Natural gas production creates methane, a greenhouse gas that is 21 times worse for global warming than CO2.
Ethanol is an alcohol-based alternative fuel made by fermenting and distilling crops such as corn, barley or wheat. It can be blended with gasoline to increase octane levels and improve emissions quality. Renewable materials are used for making ethanol as fuel.
Hydrogen and CNG are also best available fuels to protect the environment. However, fuels using hydrogen come at a high price and the lack of fueling infrastructure and difficulty of producing it is not environmentally friendly and storing it in a fuel tank is extremely hazardous. Natural gas production creates methane, a greenhouse gas that is 21 times worse for global warming than CO2.
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