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Chapter 5 Clickers
Natural Hazards
Fourth Edition
Volcanoes
Tim Frazier
The University of Idaho
© 2015 Pearson Education, Inc.
Approximately two-thirds of all the active volcanoes
on Earth are located
a)
b)
c)
d)
e)
in the Atlantic Ocean.
along the east coasts of continents.
in the Indian Ocean.
within the Ring of Fire.
in Asia.
© 2015 Pearson Education, Inc.
Approximately two-thirds of all the active volcanoes
on Earth are located
a)
b)
c)
d)
e)
in the Atlantic Ocean.
along the east coasts of continents.
in the Indian Ocean.
within the Ring of Fire.
in Asia.
© 2015 Pearson Education, Inc.
Magma begins to form if rocks are close to their melting
temperature and the pressure from above is decreased in
the process called
a)
b)
c)
d)
e)
addition of heat.
addition of volatiles.
decompression melting.
subduction.
None of the answers are correct.
© 2015 Pearson Education, Inc.
Magma begins to form if rocks are close to their melting
temperature and the pressure from above is decreased in
the process called
a)
b)
c)
d)
e)
addition of heat.
addition of volatiles.
decompression melting.
subduction.
None of the answers are correct.
© 2015 Pearson Education, Inc.
Which is not a sinking plate in the “Ring of Fire”?
a)
b)
c)
d)
e)
Australian
Pacific
Philippine
Juan de Fuca
Cocos
© 2015 Pearson Education, Inc.
Which is not a sinking plate in the “Ring of Fire”?
a)
b)
c)
d)
e)
Australian
Pacific
Philippine
Juan de Fuca
Cocos
© 2015 Pearson Education, Inc.
In order of increasing silica content, the three major types of
magma are
a)
b)
c)
d)
e)
Basaltic, andesitic, rhyolitic
Basaltic, rhyolitic, andesitic
Rhyolitic, basaltic, andesitic
Rhyolitic, andesitic, basaltic
Andesitic, rhyolitic, basaltic
© 2015 Pearson Education, Inc.
In order of increasing silica content, the three major types of
magma are
a)
b)
c)
d)
e)
Basaltic, andesitic, rhyolitic
Basaltic, rhyolitic, andesitic
Rhyolitic, basaltic, andesitic
Rhyolitic, andesitic, basaltic
Andesitic, rhyolitic, basaltic
© 2015 Pearson Education, Inc.
The figure shown is an example of a ______ eruption.
a)
b)
c)
d)
e)
stratovolcano
lava dome
shield volcano
cinder cone
continental caldera
© 2015 Pearson Education, Inc.
The figure shown is an example of a ______ eruption.
a)
b)
c)
d)
e)
stratovolcano
lava dome
shield volcano
cinder cone
continental caldera
© 2015 Pearson Education, Inc.
Crater Lake (shown in the figure) is an example of a
_______.
a)
b)
c)
d)
e)
stratovolcano
lava dome
shield volcano
cinder cone
continental caldera
© 2015 Pearson Education, Inc.
Crater Lake (shown in the figure) is an example of a
_______.
a)
b)
c)
d)
e)
stratovolcano
lava dome
shield volcano
cinder cone
continental caldera
© 2015 Pearson Education, Inc.
Tsunamis, fires, landslides, and debris flows are all examples
of ________ of volcanic activity.
a)
b)
c)
d)
e)
major effects
minor effects
primary effects
secondary effects
tertiary effects
© 2015 Pearson Education, Inc.
Tsunamis, fires, landslides, and debris flows are all examples
of ________ of volcanic activity.
a)
b)
c)
d)
e)
major effects
minor effects
primary effects
secondary effects
tertiary effects
© 2015 Pearson Education, Inc.
The Roman towns of Pompeii and Herculaneum were
destroyed from the _______ of Mount Vesuvius.
a)
b)
c)
d)
e)
magma
pyroclastic flow
landslides
ash fall
lahar
© 2015 Pearson Education, Inc.
The Roman towns of Pompeii and Herculaneum were
destroyed from the _______ of Mount Vesuvius.
a)
b)
c)
d)
e)
magma
pyroclastic flow
landslides
ash fall
lahar
© 2015 Pearson Education, Inc.
© 2015 Pearson Education, Inc.
The figures on the previous slide show the before and after
of what volcano?
a)
b)
c)
d)
e)
Mount Unzen
Mount Mazama
Mount St. Helens
Mount Vesuvius
Mauna Loa
© 2015 Pearson Education, Inc.
The figures show the before and after of what volcano?
a)
b)
c)
d)
e)
Mount Unzen
Mount Mazama
Mount St. Helens
Mount Vesuvius
Mauna Loa
© 2015 Pearson Education, Inc.
© 2015 Pearson Education, Inc.
The shaded areas on the map show the _______ of the
three labeled volcanoes.
a)
b)
c)
d)
e)
lahar paths
ash fallout areas
earthquake areas
lava flows
All of the answers are correct.
© 2015 Pearson Education, Inc.
The shaded areas on the map show the _______ of the
three labeled volcanoes.
a)
b)
c)
d)
e)
lahar paths
ash fallout areas
earthquake areas
lava flows
All of the answers are correct.
© 2015 Pearson Education, Inc.
The “year without a summer” in New England was a result of
the Tambora volcano creating what?
a)
b)
c)
d)
e)
local tsunami
global tsunami
global cloud of sulfuric acid droplets
global earthquake
global cloud of silica
© 2015 Pearson Education, Inc.
The “year without a summer” in New England was a result of
the Tambora volcano creating what?
a)
b)
c)
d)
e)
local tsunami
global tsunami
global cloud of sulfuric acid droplets
global earthquake
global cloud of silica
© 2015 Pearson Education, Inc.
What is a natural service function that volcanoes provide?
a)
b)
c)
d)
e)
Provide excellent growth medium for plants
Create power for nearby urban areas
Host minerals in volcanic rocks
Provide recreational activities
All are natural service functions of volcanoes.
© 2015 Pearson Education, Inc.
What is a natural service function that volcanoes provide?
a)
b)
c)
d)
e)
Provide excellent growth medium for plants
Create power for nearby urban areas
Host minerals in volcanic rocks
Provide recreational activities
All are natural service functions of volcanoes.
© 2015 Pearson Education, Inc.
What type of information is NOT used in forecasting volcanic
eruptions?
a)
b)
c)
d)
e)
Monitoring the atmospheric pressure
Monitoring volcanic gas emissions
Monitoring seismic activity
Monitoring thermal, magnetic, and hydrologic conditions
Monitoring the land surface for tilting or swelling of the
volcano
© 2015 Pearson Education, Inc.
What type of information is NOT used in forecasting volcanic
eruptions?
a)
b)
c)
d)
e)
Monitoring the atmospheric pressure
Monitoring volcanic gas emissions
Monitoring seismic activity
Monitoring thermal, magnetic, and hydrologic conditions
Monitoring the land surface for tilting or swelling of the
volcano
© 2015 Pearson Education, Inc.
_____ and _____ are significant factors in a person’s
knowledge of the hazard and possible adjustments to it.
a)
b)
c)
d)
e)
Age; level of education
Age; length of residence near hazard
Level of education; length of residence near hazard
Level of education; amount of family in the area
Age; amount of family in the area
© 2015 Pearson Education, Inc.
_____ and _____ are significant factors in a person’s
knowledge of the hazard and possible adjustments to it.
a)
b)
c)
d)
e)
Age; level of education
Age; length of residence near hazard
Level of education; length of residence near hazard
Level of education; amount of family in the area
Age; amount of family in the area
© 2015 Pearson Education, Inc.
Lava and other volcanic materials are extruded on to the
surface through a
a)
b)
c)
d)
e)
plate boundary.
geyser.
lava tube.
volcanic vent.
deep-sea trench.
© 2015 Pearson Education, Inc.
Lava and other volcanic materials are extruded on to the
surface through a
a)
b)
c)
d)
e)
plate boundary.
geyser.
lava tube.
volcanic vent.
deep-sea trench.
© 2015 Pearson Education, Inc.
The largest type of volcanoes – common in the Hawaiian
Islands, Iceland, and in the East African Rift – are _______
volcanoes.
a)
b)
c)
d)
e)
shield
cinder cone
lava dome
stratovolcano
continental caldera
© 2015 Pearson Education, Inc.
The largest type of volcanoes – common in the Hawaiian
Islands, Iceland, and in the East African Rift – are _______
volcanoes.
a)
b)
c)
d)
e)
shield
cinder cone
lava dome
stratovolcano
continental caldera
© 2015 Pearson Education, Inc.
All of the following are direct hazards of ash fall except
a)
b)
c)
d)
e)
aircraft engine “flame out”
richer farming soil
contamination of surface water
irritation of the respiratory system
damage to buildings
© 2015 Pearson Education, Inc.
All of the following are direct hazards of ash fall except
a)
b)
c)
d)
e)
aircraft engine “flame out”
richer farming soil
contamination of surface water
irritation of the respiratory system
damage to buildings
© 2015 Pearson Education, Inc.
If the _______ of the Yellowstone and Long Valley eruptions
were experienced today, it would devastate the U.S.
economy and food production capabilities, as well as have
negative impacts on global climate change.
a)
b)
c)
d)
e)
ash fall
lahar
landslides
magma
pyroclastic flow
© 2015 Pearson Education, Inc.
If the _______ of the Yellowstone and Long Valley eruptions
were experienced today, it would devastate the U.S.
economy and food production capabilities, as well as have
negative impacts on global climate change.
a)
b)
c)
d)
e)
ash fall
lahar
landslides
magma
pyroclastic flow
© 2015 Pearson Education, Inc.
What method was used on the Icelandic Island of Heimaey to
deflect the lava flow from the main town?
a)
b)
c)
d)
e)
Wall construction
Levees
Addition of volatiles
Hydraulic chilling
Decompression melting
© 2015 Pearson Education, Inc.
What method was used on the Icelandic Island of Heimaey to
deflect the lava flow from the main town?
a)
b)
c)
d)
e)
Wall construction
Levees
Addition of volatiles
Hydraulic chilling
Decompression melting
© 2015 Pearson Education, Inc.