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This quiz consists of 5 multiple choice and 5 short answer questions through Cooling the Lava.

Multiple Choice Questions

1. Heimaey is about the same size as:
(a) Washington, D.C. east of the Washington Monument.
(b) Manhattan south of the Empire State Building.
(c) San Francisco north of Chinatown.
(d) Seattle west of the Space Needle.

2. After work crews deal with the moving mountain on Iceland's erupting island, what challenge do they face?
(a) Orders from Iceland's government to stop all cooling efforts.
(b) Pumps that fail due to excessive heat.
(c) New lava flow that threatens the town.
(d) Blinding blizzard that buries the equipment.

3. What does the 1927 flood in Louisiana teach officials about levees?
(a) They make the flooding problem worse.
(b) More need to be constructed faster.
(c) They need to be built taller.
(d) They work beautifully.

4. The Old River Control began its operations in what year?
(a) 1988.
(b) 1931.
(c) 1917.
(d) 1963.

5. Over a number of centuries, how does the Mississippi River form the state of Louisiana?
(a) By irrigating carefully cultivated fields.
(b) By creating all of the state's boundaries.
(c) By overflowing river banks.
(d) By cutting deep, rocky canyons into the land.

Short Answer Questions

1. A towboat is designed to:

2. In 1973, what happens to the Old River Control structure despite engineers drilling it and filling it with cement?

3. Who is Raphael G. Kazmann?

4. In the spring of 1973, what does the U.S. Army Corps of Engineers do to try to alleviate the tremendous force of water against the control structure?

5. For how many years after the Old River Control begins does the operation appear to be successful?

(see the answer key)

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