Question

What is Biomass?
A) Organic fuel that is used for treatment of wastes.
B) Organic fuel that is used as a source of energy.
C) Organic matter that has a large mass.
D) Waste products from industries.

Answer 1

When organic material is broken down by the microorganisms then it liberates some gases which are used to generate energy. Biomass is fuel that is developed from organic materials, a renewable and sustainable source of energy used to create electricity or other forms of power.

Complete step by step solution:
Biomass contains energy in the form of chemical energy from the sun. Plants produce biomass through photosynthesis where the nutrients absorbed by the plants from the soil get converted to energy form during the process of photosynthesis.
Biomass can be burned directly for heat or converted to renewable liquid and gaseous fuels through various processes.

Biomass sources for energy include the following sources:
wood and wood processing wastes: firewood, wood pellets, and wood chips, lumber and furniture mill sawdust and waste, and black liquor from pulp and paper mills
Waste materials and agricultural crops and: corn, soybeans, sugar cane, woody plants, and algae, and crop and food processing residues
Municipal solid waste —paper, cotton, and wool products, and food, yard, and wood wastes
Animal manure and human sewage
Direct combustion is the most common method for converting biomass to useful energy. When biomass gets burnt, then during combustion it releases energy in the form of heat energy, which can be further converted to another useful form of energy. The heat energy from the combustion process of biogas can be used in steam engines and can be converted to mechanical form of energy using turbines.

Hence, option B is the correct answer.

Note: Biogas is a sustainable and renewable source of energy which secures the future availability of energy.The efficiency of biogas depends on the method used for the conversion of energy into other useful forms of energy.