Understanding Alternative Fuels

How many barrels of oil does the United States use each day?

• Approximately 5 million barrels

• Approximately 10 million barrels

• Approximately 20 million barrels

• Approximately 14 million barrels

What percentage of vehicles in the U.S. run on gasoline or diesel fuels?

• Nearly 85 percent

• Around 50 percent

• Over 99 percent

• About 75 percent

What was the cost of a barrel of crude oil at its peak in the summer of 2008?

• $133

• $100

• $120

• $150

Which of the following is NOT listed as an alternative fuel in the text?

• Propane

• Biodiesel

• Hydrogen

• Ethanol

According to the text, what has led to an effort to develop alternatives to petroleum fuels?

• Technological advancements

• Global politics

• Only economic factors

• Air pollution and health concerns

How much did vehicle emissions drop since the 1960s?

• More than 95 percent

• Less than 50 percent

• About 80 percent

• Around 60 percent

What is the impact of using alternative fuels compared to petroleum, according to the text?

• They are less efficient

• They emit fewer air pollutants

• They are harder to find

• They are more expensive