Q61. What is biomass energy primarily derived from?
a) Wind
b) Water
c) Organic matter
d) Natural gas
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Correct Answer: c) Organic matter
Explanation: Biomass energy is derived from organic matter such as wood, agricultural residues, municipal solid waste, and animal waste. Through processes like combustion, gasification, or fermentation, biomass can be converted into energy sources such as heat, electricity, or biofuels.
Q62. Which of the following is not a form of biomass energy?
a) Biogas
b) Ethanol
c) Natural gas
d) Biodiesel
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Correct Answer: c) Natural gas
Explanation: Natural gas is a fossil fuel extracted from underground reservoirs and is not considered a form of biomass energy. Biomass energy, on the other hand, is derived from organic materials of biological origin.
Q63. Which renewable resource is often co-fired with coal in power plants to reduce greenhouse gas emissions?
a) Wind
b) Solar
c) Biomass
d) Geothermal
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Correct Answer: c) Biomass
Explanation: Co-firing biomass with coal in power plants can reduce greenhouse gas emissions and dependence on fossil fuels. Biomass is readily available and can be sustainably sourced, making it an attractive option for reducing the carbon intensity of power generation.
Q64. What is the main advantage of biomass energy?
a) Abundance
b) Cleanliness
c) Low cost
d) Efficiency
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Correct Answer: a) Abundance
Explanation: Biomass resources such as agricultural residues, forestry waste, and organic waste are abundant and widely available. This makes biomass energy a potentially sustainable and renewable source of energy.
Q65. Which process is used to convert solid biomass into gaseous fuel?
a) Combustion
b) Gasification
c) Fermentation
d) Pyrolysis
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Correct Answer: b) Gasification
Explanation: Gasification is the process of converting solid biomass into a gaseous fuel known as syngas. This syngas can be used for various applications, including electricity generation and as a feedstock for producing biofuels.