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

Multiple Choice Questions

1. What gives Thorbjorn Sigurgeirsson the idea to cool the oncoming flow of lava?
(a) Stories he'd heard of ancestors doing the same.
(b) Watching lava cool by the sea.
(c) Watching children play by the water.
(d) His post-graduate studies.

2. When does the author visit Vestmannaeyjar?
(a) Fifteen years after the eruption.
(b) During the eruption.
(c) When the ice shelf collapses.
(d) Fifteen years after the collapse of the ice shelf.

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

4. Thorbjorn Sigurgeirsson decides to try to stop the chunk of mountain moving towards Heimaey's town and harbor by:
(a) Blowing up the mountain with a thousand sticks of dynamite.
(b) Ordering a plane to drop a bomb on the mountain.
(c) Pumping seawater directly onto the mountain.
(d) Blocking the mountain with a natural barrier of cooled lava.

5. Over two centuries of recorded history, Mauna Loa erupts how often on average?
(a) Every twelve years.
(b) Twice a year.
(c) Every three and a half years.
(d) Three times a year.

Short Answer Questions

1. While aboard the Mississippi on his annual trip, General Sands tries to:

2. What nickname do the residents of Heimaey give to Sveinn Eiriksson?

3. Norris F. Rabalais was born and raised in what Louisiana parish?

4. The author states that how much of New Orleans lies fifteen feet below sea level?

5. When does hot lava stop glowing red?

(see the answer key)

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