Which of the following statement/s hold true about biofuels?

It is designed to replace fossil fuels.

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It is produced by crops.

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It is a non-renewable source of energy.

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It releases carbon monoxide into the atmosphere.

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Solution

The correct options are
A It is designed to replace fossil fuels.
B It is produced by crops.
Bio-fuels are designed to replace non-renewable sources of energy like fossil fuels. Firstly, cellulosic biomass is obtained from energy crops preceded by harvesting and threshing. Cellulose is composed of long chains of sugars, which when broken, yields sugar molecules. These sugar molecules are fermented by microbes, producing liquid fuel. Other sources of bio-fuel include alcohol, gobar gas, coal gas, dung, vegetable oils etc.

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