13 questions
Biofuel is any source of energy made from biomass, or material that came from living organisms.
True
False
Biofuels can be made from which items:
plants
manure
algae
all of the above
Fossil fuels are considered biofuels.
True
False
Biofuels are made from recently living organisms & they’re better for the environment.
True
False
What part of a corn plant is most likely to be used in making ethanol?
kernels
stalk
oils
the roots
Biofuels are ‘carbon-neutral’. This means the plant’s ability to help remove carbon dioxide offsets the carbon dioxide that will be released when it’s burned.
True
False
In the movie, Tim mentions a blend of ethanol as E-10. What can you infer about the blend E-20?
20% ethanol & 80% gasoline
80% ethanol & 20% gasoline
Biofuels create the same amount of air pollution as fossil fuels.
True
False
The most common type of biofuel is ethanol.
True
False
Ethanol is frequently made from which of the following?
You can drive farther on a single tank of fossil fuel than you can on a single tank of biofuel.
True
False
Biofuels can be made out what items?
algae
wood chips
wild grasses
all of the above
One disadvantage of producing more ethanol for use as a fuel is rising prices of certain food crops.
True
False