There are several advantages to using biofuels over fossil fuels. If you think you know all there is to know about these eco-friendly fuel options, take our quiz to see how "green" savvy you really are.
Compared to fossil fuels, which of the following is the most significant advantage of using biofuels as a source of energy?
What is one advantage of growing switchgrass for use as a biofuel?
Switchgrass can grow anywhere.
Switchgrass is easy to process into biofuel.
Switchgrass does not compete with food crops.
Switchgrass biofuel produces low levels of energy.
In what way does the U.S. government promote the biofuel industry?
Why is biodiesel fuel good for vehicles?
Biodiesel works well in cold weather.
Biodiesel is easy to make.
Biodiesel keeps engines well lubricated.
Biodiesel can be used in existing diesel engines.
Why is biodiesel popular in rural areas?
It is very convenient.
It is easy to transport.
It is easy to refine.
It costs less money than petroleum.
How do fossil fuels contribute to global warming?
Fossil fuels create heat-trapping gases.
Fossil fuels are efficient.
Fossil fuels reduce the amount of carbon dioxide in the air.
Fossil fuels are not sustainable.
How do biofuels impact human health?
Biofuel does not produce any toxins.
Biofuel cleanses the atmosphere, which reduces health risks.
Biofuel reduces smog, which reduces asthma.
Biofuel creates an up-tick in lung cancer.
When considering biofuels, which of the following is the correct definition of "carbon neutral"?
The carbon released when biofuels are burned is more than the amount of CO2 that plants absorb out of the atmosphere.
The carbon biofuels release is less than the amount of carbon dioxide plants absorb out of the atmosphere.
The carbon dioxide biofuels release is minimal compared to the amount of carbon dioxide created when the fuels are distilled.
The carbon dioxide biofuels release when burned is equal to the amount that plants can absorb out of the atmosphere.
Why do some people believe biofuels are a better source of energy than other alternative fuels, such as solar power?
The technology required for the widespread implementation of biofuels is already available.
Other alternative fuels require vast amounts of capital to create.
Other alternative fuels are not sustainable.
Biofuels are easy to create.
Which one of these statements is not true about biodiesel?
Conventional diesel engines can run on biodiesel.
Biodiesel is sustainable.
Biodiesel is toxic and spews high levels of sulfur.
Biodiesel is cleaner burning than petroleum diesel.
Why are soybeans important in alleviating America's dependence on foreign oil?
Most biodiesel in the United States is produced from soybeans.
Biodiesel from soybeans creates less greenhouse gases.
Soybeans don't grow outside of the United States.
Soybeans create more pollution than oil.
What percentage of biomass do you think the United States uses for fuel?
Which biodiesel crop do people in Ghana grow, saving that country more than $230 million a year in oil imports?
Why is jatropha a popular "fuel crop" in India?
Jatropha is inexpensive to distill into biofuel.
Indians use jatropha as a food crop.
India exports billions of gallons of jatropha biofuel each year.
Jatropha brings economic benefits to rural farmers who can grow the crop on land ill-suited for food production.
Which of the following is an accurate characterization of a "flexible fuel" vehicle?
Flexible fuel vehicles run on gasoline and hydrogen.
Flexible fuel vehicles run on biofuel and gasoline or diesel.
Flexible fuel vehicles run on solar power and gasoline.
Flexible fuel vehicles run on solar power, hydrogen and electricity.
According to the U.S. Department of Energy, how many Alternative Fuel Vehicles (AFVs) are in use in the United States?
Less than 300,000
More than 450,000
More than 775,000
How many AFVs in the United States run on ethanol?
More than 450,000
More than 860,000
Which occupation is expected to grow as biofuel use increases?
Which of the following is a correct statement regarding how biofuels impact the national security of the United States?
Biofuels reduce U.S. dependency on foreign sources of oil, reducing tensions in volatile regions such as the Middle East.
The U.S. can export biofuels, lessening tension with other countries.
The U.S. can import more biofuels, lessening tensions with other countries.
An increase in biofuels will allow the U.S. military to pull out of Afghanistan sooner than expected.
What is one benefit of maximizing crop production?
A higher yield per acre means farmers can grow more grain for food.
A higher yield per acre means farmers can grow more grain for fuel.
Maximizing crop production will cause food prices to spike.
A higher yield per acre means farmers can grow more grain for both food and fuel.