Harnessing Biomass Energy: Processes and Impacts on Environment and Health

Biomass energy, or bioenergy, is derived from organic matter, including plants and waste. It involves various conversion processes like combustion, gasification, pyrolysis, anaerobic digestion, and fermentation. Historically, biomass was a primary energy source, but now it accounts for a small percentage of global energy use. However, it remains crucial for 2.5 billion people for cooking and heating. The use of biomass is influenced by regional resources, technology, and economic factors. While some processes have lower carbon emissions, others pose health risks. Environmental concerns include deforestation and land-use changes.

What is the primary component found in all biomass feedstocks?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

Which biomass conversion process involves burning feedstock in the presence of air?

• Combustion

• Pyrolysis

• Fermentation

• Gasification

What is the main product of anaerobic digestion?

• Syngas

• Bio-oil

• Biochar

• Biogas

Which process converts plant glucose into ethanol using yeast?

• Combustion

• Pyrolysis

• Fermentation

• Gasification

What was the primary source of energy before the Industrial Revolution?

• Solar

• Natural Gas

• Biomass

• Coal

Approximately how many people still rely on biomass as their primary energy source?

• 1 billion

• 2.5 billion

• 4 billion

• 5 billion

Which factor is NOT a driver of biomass use in a region?

• Technology availability

• Cultural traditions

• Economic viability

• Availability of resources

What is a major health concern associated with burning biomass?

• Water pollution

• High cost

• Lack of ventilation

• Excessive noise

Which environmental issue is NOT directly associated with biomass use?

• Deforestation

• Air pollution

• Soil erosion

• Water scarcity

What is a potential negative impact of biomass combustion?

• Increased biodiversity

• Improved air quality

• Carbon dioxide emissions

• Reduced energy costs