biofules

• What is a biofuel?

  A fuel made from recently living organisms
• Why is the distinction of "recently living" important for biofuels?

  Because fossil fuels come from organisms millions of years old
• What are the primary sources of biofuels?

  Plants and algae
• How do plants and algae contribute to biofuels?

  They photosynthesize and store the sun's energy
• Can animal waste be used for biofuels?

  Yes, but on a smaller scale
• Why are biofuels considered carbon neutral?

  They absorb CO2 while growing
• What makes biofuels a renewable resource?

  They can be grown repeatedly
• What is a benefit of biofuels regarding transportation?

  They are easy to transport and mix with fossil fuels
• How do biofuels compare to electricity from solar or wind energy?

  Biofuels do not require new cars for use
• What environmental issue arises from growing biofuel crops?

  It may involve converting natural land and cutting forests
• What is a consequence of harvesting and processing biofuels?

  It requires energy, likely releasing more CO2
• How effective are biofuels compared to initial expectations?

  They are not as good as first thought
• What are the pros and cons of using biofuels?

  Pros:

  • Carbon neutral when grown
  • Renewable resource
  • Easy to transport and mix with fossil fuels
  • Relatively cheap to produce

  
  

  Cons:

  • Requires land, potentially damaging environment
  • Energy needed for harvesting and processing may increase CO2
  • Not as effective as initially believed
• How should biofuels be used according to the video?

  Used where it makes sense, not exclusively