The Control of Nature Test | Final Test - Medium

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Multiple Choice Questions

(a) A completely deserted ghost town.
(b) A town twice as large as before the eruption.
(c) Several new neighborhoods built atop cooled lava flows.
(d) Vacant houses that have never been repaired.

2. When does hot lava stop glowing red?
(a) Below fifteen hundred degrees.
(b) Below thirty-five hundred degrees.
(c) When it hits an iceberg.
(d) When the air temperature is minus twenty.

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

4. The U.S. Army Air Corps' actions on an insulating vent on Mauna Loa volcano in 1935 result in what?
(a) Debris buildup and redirected lava flows.
(b) Cooled lava.
(c) Temporary halt of lava flows.
(d) Better seismic readings.

5. 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.

Short Answer Questions

1. Results of the U.S. Army Air Corps' actions on an insulating vent on Mauna Loa volcano in 1935 cannot be confirmed because:

2. For the most part, residents of Heimaey are what during the 1973 eruptions?

3. With "City Flow" moving towards them in Heimaey, what do pumping crews do?

4. The Hawaiian Research Association forms for what purpose?

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

Short Essay Questions

1. What is threatened in Heimaey as a result of the unexpected volcanic eruption of 1973?

2. What role does Magnus Magnusson play during the 1973 volcanic eruptions in Heimaey?

3. How does the National Oceanic and Atmospheric Administration protect its sensitive, expensive equipment against damaging lava in Hawaii?

4. Who is Thorbjorn Sigurgeirsson, and what idea does he come up with?

5. How do the working crews stop the large chunk of mountain from crashing into Heimaey's town and port?

6. How old are the oldest parts of Hawaii and Iceland?

7. How do residents of Heimaey benefit from the cooling but still hot lava after the 1973 eruptions?

8. Describe how Thorbjorn Sigurgeirsson and Sveinn Eiriksson work together to fight against the lava that threatens Heimaey's town and harbor.

9. The author moves away from his discussion of Iceland's 1973 lava eruptions to talk about Hawaii's volcanoes. Describe what he writes about the U.S. Army Air Corps' attempts to stop lava from burying Hawaii's towns and cities.

10. What is the "City Flow?"

(see the answer keys)

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