In a village people burn wood and cow dung as a fuel for basic necessity. In other nearby village; they have a big biogas plant in which bio waste is used to prepare biogas. If we compare the situation of both villages, which practice you will prefer as the best and why?
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I'll prefer the second village which use the biogas system
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Second village Qualities of Bio gas fuel.
Associated Value: The learners will appreciate the practice of adopting renewable sources of energy like CNG, Biofuel, solar energy by the people.
equipments /chemical that produces CFCs in order to protect ozone layer.
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