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

Multiple Choice Questions

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

2. If refrigerators still needed to use as many kilowatt-hours as in 1974, how many new gigawatt power plants would have had to be provided?
(a) 23.
(b) 31.
(c) 19.
(d) 42.

3. If all of Antarctica melts, how much will the sea level rise?
(a) About 300 feet.
(b) 345 feet.
(c) 150 feet.
(d) Over 250 feet.

4. When the author had his feet x-rayed as a child, how much radiation did his feet probably receive?
(a) 50 rem.
(b) 60 rem.
(c) 45 rem.
(d) 55 rem.

5. How many horsepower do car engines deliver?
(a) 50 to 200.
(b) 250.
(c) 150.
(d) 100 to 300.

Short Answer Questions

1. At 5 miles per second, how much energy of an equal weight of TNT is carried by every ounce of a space shuttle, including its human cargo?

2. How long does the radioactivity of potassium-40 last?

3. How many times less toxic is plutonium that cyanide?

4. How many deaths did the United Nations estimate around the world were caused by radiation from Chernobyl?

5. In Chapter 6, what was the name of Muller's student in his anecdote?

(see the answer key)

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