SCIENCE
ENERGY ENERGY RESOURCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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95%
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90%
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85%
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80%
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Detailed explanation-1: -The methane content of biogas typically ranges from 45% to 75% by volume, with most of the remainder being CO2.
Detailed explanation-2: -Biogas contains roughly 50-70% CH4 and 30-50% CO2 and has a generally accepted mean calorific value of about 25 MJ/m3 (1 m3 of biogas is an equivalent of energy in 0.93 m3 of natural gas or in 1.25 kg of coal).
Detailed explanation-3: -The major constituent of biogas is methane. Percentage of Methane in biogas is around 50%-75%.
Detailed explanation-4: -Methane is an important trace gas in Earth’s atmosphere. Even though it only makes up 0.00017% (1.7 parts per million by volume) of the the atmosphere, methane traps a significant amount of heat, helping the planet remain warm and habitable.