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

Multiple Choice Questions

1. How do the returning residents benefit from the cooled but still hot lava rocks on Vestmannaeyjar?
(a) The rocks are used for heating purposes.
(b) Lava rocks are used to create healing hot springs.
(c) Heat from the rocks promotes growth of beneficial bacteria.
(d) The heat provides protection against invaders.

2. The author states that how much of New Orleans lies fifteen feet below sea level?
(a) All of it.
(b) Half.
(c) One quarter.
(d) Ten percent.

3. When the author visits Vestmannaeyjar, what does he notice?
(a) Most residents have moved out.
(b) Few survived the flu epidemic.
(c) Steam still rises from the ground.
(d) No polar bears are left.

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

5. To cool the lava flows of 1973, what does Valdimar Jonsson suggest?
(a) Stacking ice blocks along the lava's path.
(b) Redirecting the flow towards an iceberg.
(c) Using ten times more water.
(d) Using ice and snow.

Short Answer Questions

1. In 1928, Congress enacts the Flood Control Act to start what?

2. During Thorbjorn Sigurgeirsson's test run to cool lava by the coastline, what happens?

3. Reykjavik is the capital city of what nation?

4. What do work crews call the two-million ton floating mountain that breaks off during the 1973 eruptions?

5. This book is a:

(see the answer key)

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