4. Renewable Energy
Bioenergy — Quiz
Test your understanding of bioenergy with 5 practice questions.
Practice Questions
Question 1
Which category of biomass feedstock typically has the highest cellulose content and is most suitable for cellulosic bioethanol production?
Question 2
If a bioenergy facility yields 2,500 GJ of biofuel energy annually and consumes 500 GJ of fossil energy in cultivation, processing, and transport, what is its energy return on investment (EROI)?
Question 3
What is the primary sustainability role of biochar produced from biomass pyrolysis?
Question 4
Which statement correctly contrasts typical temperature ranges for biomass pyrolysis and gasification?
Question 5
If a biofuel has a life‐cycle greenhouse gas intensity of 25 g CO₂eq/MJ and the fossil diesel alternative has 85 g CO₂eq/MJ, what is the percentage reduction in GHG emissions?