Select the best answer for each question.

1. What are fossil fuels?

   1.   ?    Fuels produced by the decay of organic matter..
   2.   ?    Fuel that are renewable.
   3.   ?    Energy sources such as nuclear or solar power.

2. Energy Intensity is best defined as:

   1.   ?    The use of large amounts of energy for production
   2.   ?    Industrialized nations
   3.   ?    The ratio of energy used to production output.

3. What event began a steep decline in energy intensity in the United States?

   1.   ?    The Second World War
   2.   ?    The 1973 Oil Embargo.
   3.   ?    The cloning of Dolly.
   4.   ?    The development of nuclear energy.

4. Which of the following are fossil fuels? (Select ALL correct answers).

   1. Hydrogen
   2. Natural Gas
   3. Coal
   4. Nuclear Energy
   5. Oil
   6. Wood
   Check

5. What is the cause of acid rain?

   1.   ?    The burning of fossil fuels
   2.   ?    Radioactivity from nuclear facilities
   3.   ?    The greenhouse effect.
   4.   ?    The depletion of the ozone layer.

6. How long does the waste from nuclear power plants remain radioactive?

   1.   ?    Approximately 50 years.
   2.   ?    Between 100 and 1000 years.
   3.   ?    Up to 10,000 years
   4.   ?    Between 10,000 and 100,000 years

7. What is the current best estimate of when world oil production will begin to decline?

   1.   ?    The year 2005
   2.   ?    The year 2010
   3.   ?    The year 2015
   4.   ?    The year 2020

8. What is the most practical role for technology to play in addressing the energy crisis for the short term.

   1.   ?    Technology can be used to reduce pollution and increase fuel efficiency.
   2.   ?    Technology can rapidly develop the use of hydrogen and solar energy.
   3.   ?    Technology can develop and deploy nuclear fusion as a reliable, cheap energy source.
   4.   ?    Technology can develop more nuclear power plants.

9. What causes the greenhouse effect?

   1.   ?    A build up of sulfur in the earth's atmosphere.
   2.   ?    The depletion of the ozone layer.
   3.   ?    A build up of carbon dioxide in the earth's atmosphere.
   4.   ?    The use of nuclear energy.

10. What are the main ways that technological innovations have damaged the environment?

    1.   ?    Through decreasing energy intensity.
    2.   ?    Through reduced weight and improved aerodynamics of automobiles.
    3.   ?    Depletion of non-renewable resources and pollution.