What are the two key concepts for this section? What is biomass and what are the major advantages and disadvantages of using wood to provide heat and electricity? What are the major advantages and...

What are the two key concepts for this section? What is biomass and what are the major advantages and disadvantages of using wood to provide heat and electricity? What are the major advantages and disadvantages of using biodiesel and ethanol to power motor vehicles? Explain how algae and bacteria could be used to produce fuels nearly identical to gasoline and diesel fuel.