Question 1

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

Accepted Answer

A)  lava from a composite volcano - andesite 
B)  eruption column - tephra 
C)  pyroclastic flow - scoria 
D)  volcanic-derived mudflow - breccia with angular fragments 
A)  lava from a composite volcano - andesite 
B)  eruption column - tephra 
C)  pyroclastic flow - scoria 
D)  volcanic-derived mudflow - breccia with angular fragments

Question 2

What is a common hazard of this type of volcano?

Accepted Answer

A)  burning, building collapse, and suffocation from an eruption column and pyroclastic flows 
B)  volcanic mudflows and landslides 
C)  relatively small pyroclastic eruptions caused by localized explosions or collapse 
D)  all of these 
A)  burning, building collapse, and suffocation from an eruption column and pyroclastic flows 
B)  volcanic mudflows and landslides 
C)  relatively small pyroclastic eruptions caused by localized explosions or collapse 
D)  all of these

Question 3

Which of the following occurs in a lava tube?

Accepted Answer

A)  The surface of the lava flow solidifies to form a roof over the moving lava. 
B)  Lava tubes insulate a lava flow, allowing it to flow farther. 
C)  If a lava tube drains, it becomes a tube-shaped cave. 
D)  All of these. 
A)  The surface of the lava flow solidifies to form a roof over the moving lava. 
B)  Lava tubes insulate a lava flow, allowing it to flow farther. 
C)  If a lava tube drains, it becomes a tube-shaped cave. 
D)  All of these.

Question 4

Which of the following is NOT true about flood basalts?

Accepted Answer

A)  They cover large areas and contain huge volumes of magma. 
B)  They cover much of the Columbia Plateau of the Pacific Northwest. 
C)  They are fed from large interconnected composite volcanoes. 
D)  Some flood basalts erupted at about the same time as major extinctions of species. 
A)  They cover large areas and contain huge volumes of magma. 
B)  They cover much of the Columbia Plateau of the Pacific Northwest. 
C)  They are fed from large interconnected composite volcanoes. 
D)  Some flood basalts erupted at about the same time as major extinctions of species.

Question 5

The classic volcano shape is displayed by:

Accepted Answer

A)  a composite volcano 
B)  a caldera 
C)  a fissure eruption 
D)  pillow basalts 
A)  a composite volcano 
B)  a caldera 
C)  a fissure eruption 
D)  pillow basalts

Question 6

Which of the following are hazards associated with scoria cones?

Accepted Answer

A)  volcanic bombs and other large projectiles ejected from the volcano 
B)  toxic gases 
C)  fine particles of volcanic ash 
D)  all of these 
A)  volcanic bombs and other large projectiles ejected from the volcano 
B)  toxic gases 
C)  fine particles of volcanic ash 
D)  all of these

Question 7

The largest concentration of composite volcanoes on Earth is located along the:

Accepted Answer

A)  Pacific Ring of Fire 
B)  East African rift zone 
C)  San Andreas fault 
A)  Pacific Ring of Fire 
B)  East African rift zone 
C)  San Andreas fault

Question 8

Which of the following activities is NOT used to monitor volcanoes?

Accepted Answer

A)  measuring seismic activity with seismic instruments 
B)  measuring sulfur dioxide gas emissions 
C)  measuring changes in heat flow from satellites 
D)  measuring tilting on the flanks of a volcano 
E)  all of these are used to monitor volcanoes 
A)  measuring seismic activity with seismic instruments 
B)  measuring sulfur dioxide gas emissions 
C)  measuring changes in heat flow from satellites 
D)  measuring tilting on the flanks of a volcano 
E)  all of these are used to monitor volcanoes

Question 9

Eruptions on the islands of Santorini in Greece and Krakatau in Indonesia resulted in:

Accepted Answer

A)  collapse of a huge caldera that caused part of an island to disappear beneath the sea 
B)  a huge ash column and pyroclastic flows 
C)  destructive waves that traveled across the sea 
D)  all of these 
A)  collapse of a huge caldera that caused part of an island to disappear beneath the sea 
B)  a huge ash column and pyroclastic flows 
C)  destructive waves that traveled across the sea 
D)  all of these

Question 10

Above which type of plate tectonic boundary is Mount Rainier located?

Accepted Answer

A)  convergent 
B)  divergent 
C)  transform 
A)  convergent 
B)  divergent 
C)  transform

Question 11

This volcano is broad and low, and is composed of basaltic lava flows. What kind of volcano is it?

Accepted Answer

A)  scoria cone 
B)  shield volcano 
C)  composite volcano 
D)  volcanic dome 
E)  caldera 
A)  scoria cone 
B)  shield volcano 
C)  composite volcano 
D)  volcanic dome 
E)  caldera

Question 12

Shield volcanoes commonly involve:

Accepted Answer

A)  fluid lava flows 
B)  volcanic domes 
C)  viscous lava flows 
D)  pyroclastic flows 
E)  all of these 
A)  fluid lava flows 
B)  volcanic domes 
C)  viscous lava flows 
D)  pyroclastic flows 
E)  all of these

Question 13

Which of the following factors makes a site near a volcano relatively more dangerous?

Accepted Answer

A)  the nearby slopes on the volcano are gentle 
B)  a site that is within a valley that drains the volcano 
C)  a site that is upwind from the volcano 
D)  all of these 
E)  none of these 
A)  the nearby slopes on the volcano are gentle 
B)  a site that is within a valley that drains the volcano 
C)  a site that is upwind from the volcano 
D)  all of these 
E)  none of these

Question 14

Which of the following are erupted by volcanoes?

Accepted Answer

A)  lava 
B)  ash 
C)  pumice 
D)  all of these 
A)  lava 
B)  ash 
C)  pumice 
D)  all of these

Question 15

Which of the following sites would most likely have composite volcanoes? A is on an island arc, B is in the Andes, C is near Hawaii, D is along a mid-ocean ridge.

Accepted Answer

A)  A and B 
B)  B and C 
C)  C and D 
D)  A and C 
E)  B and D 
A)  A and B 
B)  B and C 
C)  C and D 
D)  A and C 
E)  B and D

Question 16

This relatively small volcanic feature consists of solidified lava and some volcanic ash. What kind of volcano is it?

Accepted Answer

A)  scoria cone 
B)  shield volcano 
C)  composite volcano 
D)  caldera 
E)  none of these 
A)  scoria cone 
B)  shield volcano 
C)  composite volcano 
D)  caldera 
E)  none of these

Question 17

What do we know about the main volcanoes in the Cascade Range?

Accepted Answer

A)  Only Mount St. Helens has erupted in the last 4,000 years. 
B)  Only Mount St. Helens and Mount Shasta in California have erupted in the last 4,000 years. 
C)  Only Mount St. Helens and Crater Lake have erupted in the last 4,000 years. 
D)  Nearly all of the large Cascade volcanoes have erupted in the last 4,000 years. 
A)  Only Mount St. Helens has erupted in the last 4,000 years. 
B)  Only Mount St. Helens and Mount Shasta in California have erupted in the last 4,000 years. 
C)  Only Mount St. Helens and Crater Lake have erupted in the last 4,000 years. 
D)  Nearly all of the large Cascade volcanoes have erupted in the last 4,000 years.

Question 18

What is a main hazard of this type of volcano?

Accepted Answer

A)  hot molten fragments thrown a short distance from the volcano 
B)  viscous lava that moves too fast for people to outrun 
C)  destruction by moderately fluid lava flows that can flow far from the volcano 
D)  relatively small pyroclastic eruptions caused by localized explosions or collapse 
A)  hot molten fragments thrown a short distance from the volcano 
B)  viscous lava that moves too fast for people to outrun 
C)  destruction by moderately fluid lava flows that can flow far from the volcano 
D)  relatively small pyroclastic eruptions caused by localized explosions or collapse

Question 19

What type of basaltic feature is shown in this photograph?

Accepted Answer

A)  vesicles 
B)  volcanic bomb 
C)  aa lava flow 
D)  pahoehoe lava flow 
E)  pyroclastic flow 
A)  vesicles 
B)  volcanic bomb 
C)  aa lava flow 
D)  pahoehoe lava flow 
E)  pyroclastic flow

Question 20

Which of the following are differences between an eruption column and pyroclastic flow?

Accepted Answer

A)  Tephra in an eruption column stays hotter until it reaches the ground. 
B)  A pyroclastic flow rises higher into the atmosphere than an eruption column. 
C)  Damage from an eruption column is more restricted than a pyroclastic flow. 
D)  A pyroclastic flow forms when the gas flux cannot support the column. 
A)  Tephra in an eruption column stays hotter until it reaches the ground. 
B)  A pyroclastic flow rises higher into the atmosphere than an eruption column. 
C)  Damage from an eruption column is more restricted than a pyroclastic flow. 
D)  A pyroclastic flow forms when the gas flux cannot support the column.

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

What is a common hazard of this type of volcano?

Which of the following occurs in a lava tube?

Which of the following is NOT true about flood basalts?

The classic volcano shape is displayed by:

Which of the following are hazards associated with scoria cones?

The largest concentration of composite volcanoes on Earth is located along the:

Which of the following activities is NOT used to monitor volcanoes?

Eruptions on the islands of Santorini in Greece and Krakatau in Indonesia resulted in:

Above which type of plate tectonic boundary is Mount Rainier located?

This volcano is broad and low, and is composed of basaltic lava flows. What kind of volcano is it?

Shield volcanoes commonly involve:

Which of the following factors makes a site near a volcano relatively more dangerous?

Which of the following are erupted by volcanoes?

Which of the following sites would most likely have composite volcanoes? A is on an island arc, B is in the Andes, C is near Hawaii, D is along a mid-ocean ridge.

This relatively small volcanic feature consists of solidified lava and some volcanic ash. What kind of volcano is it?

What do we know about the main volcanoes in the Cascade Range?

What is a main hazard of this type of volcano?

What type of basaltic feature is shown in this photograph?

Which of the following are differences between an eruption column and pyroclastic flow?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Seafloor and Continental Margins

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

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Exam 6: Volcanoes and Volcanic Hazards

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

What is a common hazard of this type of volcano?

Which of the following occurs in a lava tube?

Which of the following is NOT true about flood basalts?

The classic volcano shape is displayed by:

Which of the following are hazards associated with scoria cones?

The largest concentration of composite volcanoes on Earth is located along the:

Which of the following activities is NOT used to monitor volcanoes?

Eruptions on the islands of Santorini in Greece and Krakatau in Indonesia resulted in:

Above which type of plate tectonic boundary is Mount Rainier located?

This volcano is broad and low, and is composed of basaltic lava flows. What kind of volcano is it?

Shield volcanoes commonly involve:

Which of the following factors makes a site near a volcano relatively more dangerous?

Which of the following are erupted by volcanoes?

Which of the following sites would most likely have composite volcanoes? A is on an island arc, B is in the Andes, C is near Hawaii, D is along a mid-ocean ridge.

This relatively small volcanic feature consists of solidified lava and some volcanic ash. What kind of volcano is it?

What do we know about the main volcanoes in the Cascade Range?

What is a main hazard of this type of volcano?

What type of basaltic feature is shown in this photograph?

Which of the following are differences between an eruption column and pyroclastic flow?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Seafloor and Continental Margins

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters