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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 21-25.

Multiple Choice Questions

1. How how long could the lasers mentioned in Chapter 14 deliver a power of 500 trillion watts?
(a) 1 nanosecond.
(b) 5 nanoseconds.
(c) 4 nanoseconds.
(d) 6 nanoseconds.

2. What would the temperature of the Earth's surface be without greenhouse gases?
(a) 12 degrees F.
(b) 25 degrees F.
(c) 10 degrees F.
(d) 5 degrees F.

3. At what altitude in Chapter 15 would a geostationary Earth orbit satellite orbit the earth?
(a) 33,000 miles.
(b) 22,000 miles.
(c) 31,000 miles.
(d) 27,000 miles.

4. When did the U.S. and Russia sign a treaty where they promised to reduce their stockpile of nuclear weapons to less than 6,000 each?
(a) 1998.
(b) 1992.
(c) 1996.
(d) 1991.

5. During what period of time was the temperature about 2 degrees F than at the time the book was written?
(a) 1890 to 1925.
(b) 1900 to 1945.
(c) 1860 to 1910.
(d) 1870 to 1920.

Short Answer Questions

1. How many times the energy of uranium and plutonium bombs can be released by hydrogen bombs?

2. When did a pebble bed reactor have to be shut down in Germany?

3. How much more natural radioactivity are people living in Denver exposed to than someone in New York City?

4. If all of Antarctica melts, how much will the sea level rise?

5. At the time the book was written, how much did the GRACE satellites discover that the ice volume in Antarctica is decreasing per year?

(see the answer key)

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