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

Multiple Choice Questions

1. 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) Blinding blizzard that buries the equipment.
(c) Pumps that fail due to excessive heat.
(d) New lava flow that threatens the town.

2. After being hosed down, how long does it take for red-hot lava to turn black?
(a) Two and a half weeks.
(b) Four weeks.
(c) A month and a half.
(d) Hours to days.

3. The Civil Defense Council in the Reykjavik National Emergency Center is established in 1962 as what?
(a) Storm-monitoring communication headquarters.
(b) Command-post bomb shelter.
(c) Natural disaster preparedness center.
(d) Volcano eruption monitoring station.

4. The author notes that many regard the Old River Project as what?
(a) An arrogant enterprise.
(b) A worthwhile endeavor.
(c) A colossal expense.
(d) A remarkable feat of engineering.

5. After the eruptions of 1973 end, how many of Heimaey's evacuees return?
(a) Only a handful.
(b) All of them.
(c) Two-thirds.
(d) Half.

Short Answer Questions

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

2. Heimaey is about the same size as:

3. Congress mandates that the U.S. Army Corps of Engineers survey the Mississippi and tributaries in order to assure and improve what?

4. In Hawaii, how many volcanoes are there within the group that includes Mauna Loa?

5. When floodwaters cover twenty-six thousand square miles in 1927, how is New Orleans saved?

(see the answer key)

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