Choose the correct answer

1			The Industrial Revolution of the nineteenth century was powered largely by burning
			A)	oil.
			B)	natural gas.
			C)	wood.
			D)	coal.
2			Fossil fuels supply about _____ percent of the world's energy.
			A)	27
			B)	52
			C)	85
			D)	99
3			Which one of the following energy sources has the sun as its source?
			A)	tidal energy
			B)	geothermal energy
			C)	oil
			D)	nuclear energy
4			The current percentage of oil used as fuel is _____ percent.
			A)	35
			B)	50
			C)	70
			D)	90
5			Which statement about nuclear energy is false?
			A)	Nuclear fuel reserves exceed those of fossil fuels.
			B)	Nuclear energy is responsible for about a fifth of all the electricity generated in the United States.
			C)	Nuclear energy supplies about a sixth of the world's energy.
			D)	A nuclear reactor obtains its energy from the fusion of uranium nuclei.
6			Which gas in the atmosphere is mainly responsible for global warming?
			A)	methane
			B)	carbon dioxide
			C)	carbon monoxide
			D)	nitrous oxide
7			Signs of global warming include
			A)	melting of Arctic sea ice.
			B)	stronger hurricanes and tropical storms.
			C)	shifting climate patterns.
			D)	all of these.
8			The average surface temperature of the earth has increased by _____ °C since 1900.
			A)	0.76
			B)	1.6
			C)	2.4
			D)	3.1
9			The United States has _____ percent of the world's oil reserves.
			A)	3
			B)	7
			C)	15
			D)	18
10			Which statement regarding tar sands is correct?
			A)	Tar sands have a very limited distribution, which severely limits their use as a possible source of oil.
			B)	Oil from tar sands is cost competitive with crude oil produced from wells.
			C)	On a per barrel basis, the production of tar sand oil generates much more CO2 than crude oil production from wells.
			D)	An advantage of tar sand oil production is that is requires relatively little water.
11			The fuel efficiency of cars and trucks can be increased by
			A)	designing more streamlined vehicle shapes.
			B)	reducing vehicle weight.
			C)	developing improved engines and transmissions.
			D)	all of these.
12			A hybrid car is one that
			A)	uses fuel cells to generate electricity to run one or more electric motors.
			B)	runs on ethanol instead of gasoline.
			C)	can run on a mixture of gasoline and biodiesel fuel.
			D)	has both a gasoline engine and one or more electric motors.
13			A catalytic converter works by
			A)	trapping harmful gases so they are not part of the exhaust.
			B)	increasing the reaction temperature to increase the rate of combustion.
			C)	increasing the concentration of exhaust gas to promote more complete combustion.
			D)	promoting reactions that convert polluting gases into harmless ones by the actions of certain metals.
14			Of the total amount of oil consumed in the United States, what percent is consumed by passenger cars?
			A)	15 percent
			B)	40 percent
			C)	52 percent
			D)	70 percent
15			Which statement regarding natural gas is false?
			A)	Natural gas is an important raw material for the manufacture of many chemicals.
			B)	Natural gas, although plentiful and inexpensive when compared to oil, is less efficient than other fossil fuels in producing electricity.
			C)	Natural gas generates 20 percent of the electricity in the United States.
			D)	Natural gas can be converted to diesel fuel.
16			A major drawback to the manufacture of coal-to-liquid fuel is
			A)	high CO2 emissions.
			B)	mercury contamination of the environment.
			C)	high sulfur dioxide emissions.
			D)	all of these.
17			Which of the following nations is the largest emitter of sulfur dioxide?
			A)	United States
			B)	Russia
			C)	India
			D)	China
18			Nuclear power accounts for a _____ of the world's energy supply.
			A)	tenth
			B)	sixth
			C)	fourth
			D)	third
19			All are advantages of solar cells except
			A)	little or no maintenance expense.
			B)	no moving parts.
			C)	can be installed close to where electricity is needed.
			D)	generate electricity more cheaply than fossil fuels for a given power output.
20			The world's fastest-growing source of clean energy is
			A)	geothermal.
			B)	tidal.
			C)	wind.
			D)	wave.