What is suggested about developing biofuels?
a. The price of fossil fuels will start to increase.
b. All pollution from cars will be completely eliminated.
c. They will help reduce the need for fossil fuels.
d. Growing corn will become more efficient.
2 What is special about corn ethanol and switch grass fuel?
a. Their refining process is highly efficient.
b. They are non-renewable fuels.
c. They use replenishable plants.
d. They both have a higher energy content than fossil fuels.
3 Which of the following is NOT true?
a. Switch grass greatly affects food prices.
b. Biofuels are comprised of biological ingredients like plants.
c. Switch grass is one of the most efficient biofuels yet developed.
d. Switch grass is turned into cellulosic ethanol through a refining process.
4 The information in the passage suggests that .
a. more research into corn needs to be done
b. there is no clean biofuel with no drawbacks
c. refining biofuels is a quick and easy process
d. all biofuels are equally as efficient