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

Multiple Choice Questions

1. In a conversation between General Sands and Oliver Houck on a floating conference boat, what does the General remind Houck regarding the vital role of the U.S. Army Corps?
(a) The Corps keeps the region safe against criminals.
(b) The Corps is keeping his neighborhood safe from nine feet of water.
(c) No other organization has authority to control Louisiana's rivers.
(d) This is the only organization that has ever succeeded in maintaining order in New Orleans.

2. Both Iceland and Hawaii are the world's most what?
(a) Earthquake-prone islands.
(b) Dangerous places to live.
(c) Productive geophysical hotspots.
(d) Inhabited islands.

3. Every thousand years or so, the Mississippi River goes through a major shift that leaves behind what?
(a) Large, deep saltwater lakes.
(b) Bayous and natural levees.
(c) Dry mudflats.
(d) Stranded bird colonies.

4. What is Thorbjorn Sigurgeirsson's vocation?
(a) Biologist.
(b) Chemist.
(c) Physicist.
(d) Environmentalist.

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

Short Answer Questions

1. How does Sigurdur Steinthorsson monitor volcanic gases during the 1973 eruption?

2. In New Orleans' earliest days, French settlers begin to live there despite the fact that the area:

3. During high spring waters, what danger forms unseen beneath turbulent waters at the outflow to the Atchafalaya?

4. Vestmannaeyjar holds how much of Iceland's total population?

5. Valdimar Jonsson is a professor of what?

(see the answer key)

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