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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 color roofs can lower air-conditioning costs?
(a) Brown.
(b) Cream.
(c) White.
(d) Beige.

2. How many square miles of sunlight at midday could provide a gigawatt of electric power?
(a) 1.
(b) 2.
(c) 3.
(d) 4.

3. How much larger was a nuclear explosion tested by the Soviets in Chapter 2 than the Hiroshima bomb?
(a) 3,500 times.
(b) 3,000 times.
(c) 2,000 times.
(d) 2,500 times.

4. In Section V, how many degrees Fahrenheit does the author say that the Earth's temperature has increased in the last century?
(a) 4.
(b) 3.
(c) 5.
(d) 2.

5. In Chapter 7, when oil would rise to what price per barrel did countries take their coal reserves and convert them to oil?
(a) About $50.
(b) About $65.
(c) About $60.
(d) About $55.

Short Answer Questions

1. How many watts do humans emit?

2. How much bomb-grade uranium or plutonium would be needed to make a weapon in the kiloton range?

3. In the last century, how much has the cardbon dioxide level risen?

4. What is the radius of damage that would be caused by a 1-kiloton blast?

5. During the oil crisis of the 1970s, at what percent did conservation improve per year?

(see the answer key)

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