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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 long does the radioactivity of iodine-131 last?
(a) 2 years.
(b) A month.
(c) A few weeks.
(d) 5 months.

2. In Chapter 5, what was the cost of nautral gass per million cubic feet?
(a) $12.
(b) $8.
(c) $10.
(d) $15.

3. When did the Soviets carry out a test of the largest man-made nuclear explosion?
(a) March 19, 1961.
(b) April 18, 1961.
(c) October 30, 1961.
(d) July 12, 1961.

4. What size blade could a knife have before 9/11 to be carried on board a plane?
(a) Less than 4 inches.
(b) About 2 inches.
(c) About 3 inches.
(d) Less than 5 inches.

5. When did a National Academy of Science report show no significant increase in birth defects of the children of victims in Hiroshima and Nagasaki?
(a) 2005.
(b) 2006.
(c) 2004.
(d) 2007.

Short Answer Questions

1. How long were the steel columns of the World Trade Center designed to maintain their strength during an ordinary fire?

2. When did the United States place an embargo on Japanese oil imports after they invaded China?

3. In 2008, how much did solar cells cost per square yard?

4. When was the last date that anthrax letters were sent in 2001?

5. How fast was a plane moving that was used as a weapon in the 9/11 attack?

(see the answer key)

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