Biomasses are organic substances mainly composed of carbon,
hydrogen and oxygen, are living or have recently lived in the world,
and have solar energy stored in its molecular bonds.
Biomass has a high utilization potential among renewable energy resources.
Examples of biomass include plants, such as trees, algae, corn, wheat, rye straw, grass, and fruit, vegetable wastes,
plant-based waste, urban waste and agro-industrial waste.