Exam 4: Energy and the Future

It seems possible that a serious effort to improve the efficiency of electricity use in the United States could reduce its consumption of electric energy by

The world's largest importer of oil is

In the United States, bioethanol from corn is added to gasoline for vehicle fuel because

The energy the world uses in a year is comparable with the energy that arrives from the sun every

An unsolved problem for nuclear energy is

World energy use in 2035 is expected to be

If present trends in population and greenhouse gas emissions continue, the earth's surface temperature will increase by at least a catastrophic 4 ^$\circ$ C by the year

Of the following greenhouse gases, the least important is/are

Methane is the chief constituent of

Which of the following statements is not true?

Solar radiation is ultimately responsible for

Environmental concerns are the most important factor in limiting the expansion of which of the following energy sources?

In fracking, natural gas trapped in rock formations is released by

Average energy use per person in the United States today is about

A promising method of preventing the escape into the atmosphere of carbon dioxide from fossil fuel power plants is to

Arrange these sources in increasing order of the amount of energy they supply to the world today. 1.coal 2)oil 3)natural gas 4)nuclear

Fuel cells

A factor that helps prevent the widespread use of hydrogen as a fuel is

Eventually, if bioethanol remains in use, it will probably be made from

Burning coal does not cause the release into the environment of