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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 6-10.

Multiple Choice Questions

1. How much in 2008 were "triple junction" (82) solar cells?
(a) Around $50 per square foot.
(b) $100 per square foot.
(c) $75 per square foot.
(d) About $65 per square foot.

2. How many tons of gasoline mixed with air and detonated from a parachute, release the energy of over 100 tons of TNT?
(a) 7.
(b) 5.
(c) 9.
(d) 8.

3. When did North Korea test its first atomic bomb?
(a) July 11, 2006.
(b) October 9, 2006.
(c) January 7, 2006.
(d) November 18, 2006.

4. How many gama rays were the firefighters of Chernobyl exposed to?
(a) 750 billion.
(b) 500 trillion.
(c) Over a quadrillion.
(d) About a quintillion.

5. What was the efficiency of the best solar cells at the time the book was written?
(a) 68%.
(b) 52%.
(c) 41%.
(d) 38%.

Short Answer Questions

1. How much of the radioactivity in the Chernobyl reactor was possible released into the atmosphere?

2. When did the United States build a small nuclear weapon called the Davy Crockett?

3. How many horsepower was the maximum that the author's 1966 Volkswaagen Beetle produced?

4. How much power can a healthy person produce by pedaling a bicycle?

5. In Chapter 4, how many people could have been killed by the anthrax spores mailed to news organizations?

(see the answer key)

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