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

Multiple Choice Questions

1. When did Thomas Robert Malthus write his "Essay on the Principle of Population" (320)?
(a) 1781.
(b) 1798.
(c) 1809.
(d) 1802.

2. How much of a rem is in tooth X-rays?
(a) 1/750.
(b) 1/2000.
(c) 1/500.
(d) 1/1000.

3. When did scientists use satellites called GRACE to measure changes in Antarctic ice from 2002 to 2005?
(a) 2007.
(b) 2009.
(c) 2008.
(d) 2006.

4. When El Nino shifted, when were there no hurricanes that struck the U.S. coast?
(a) 2006.
(b) 2007.
(c) 2003.
(d) 2004.

5. 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) 31.
(b) 42.
(c) 23.
(d) 19.

Short Answer Questions

1. How many rem was it estimated that survivors of the bombing of Hiroshima and Nagasaki received?

2. Exposure to what level of rem will incapacitate you within hours?

3. In Chapter 15, how long would some rides at amusement parks allow riders to fall?

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

5. What is the Earth's atmosphere?

(see the answer key)

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