Question 1

What is the main type of eruption that formed the volcano in this photograph?

Accepted Answer

A) fluid lava flows 
B) eruption of viscous lava 
C) lava fountain 
D) eruption column 
E) pyroclastic flow 
A) fluid lava flows 
B) eruption of viscous lava 
C) lava fountain 
D) eruption column 
E) pyroclastic flow

Question 2

This volcano is relatively small and composed of volcanic cinders.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 3

Which of the following is a hazard but not a risk,according to the textbook?

Accepted Answer

A) the Kilauea volcano,which covers subdivisions with molten lava 
B) a scoria cone that erupts hot molten fragments on an unpopulated Pacific island 
C) a volcano in Iceland that threatens people with dangerous gases 
D) a volcano in Iceland that caused catastrophic flooding that destroyed houses and roads 
E) all of these are both a hazard and a risk 
A) the Kilauea volcano,which covers subdivisions with molten lava 
B) a scoria cone that erupts hot molten fragments on an unpopulated Pacific island 
C) a volcano in Iceland that threatens people with dangerous gases 
D) a volcano in Iceland that caused catastrophic flooding that destroyed houses and roads 
E) all of these are both a hazard and a risk

Question 4

At what depth do gas bubbles have the most effect on magma?

Accepted Answer

A) when the magma first forms,before the bubbles can dissolve into the magma 
B) at moderate depths,when the magma is moving rapidly through the conduit 
C) at very shallow levels,such as within the volcano 
D) none of these 
A) when the magma first forms,before the bubbles can dissolve into the magma 
B) at moderate depths,when the magma is moving rapidly through the conduit 
C) at very shallow levels,such as within the volcano 
D) none of these

Question 5

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 6

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 7

Which of the following sites has volcanoes related to subduction? 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 8

What type of eruption formed this felsic volcanic breccia?

Accepted Answer

A) a pahoehoe lava flow 
B) a pyroclastic column 
C) a pyroclastic flow 
D) a lava that broke apart while it flowed 
E) a lava fountain 
A) a pahoehoe lava flow 
B) a pyroclastic column 
C) a pyroclastic flow 
D) a lava that broke apart while it flowed 
E) a lava fountain

Question 9

This relatively large,symmetrical volcano contains interlayered lava flow,pyroclastic deposits,and volcanic mudflows.What kind of volcano is it?

Accepted Answer

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

Question 10

Which of the following rock types is NOT characteristic of volcanic domes?

Accepted Answer

A) glassy volcanic rocks that are unstable over time 
B) vesicular basalt with very large holes from dangerous gas 
C) volcanic breccia formed by fracturing of the outer part of the dome 
D) mixtures of pieces of the dome and ash from dome collapse 
A) glassy volcanic rocks that are unstable over time 
B) vesicular basalt with very large holes from dangerous gas 
C) volcanic breccia formed by fracturing of the outer part of the dome 
D) mixtures of pieces of the dome and ash from dome collapse

Question 11

The main cause of caldera collapse is:

Accepted Answer

A) a fissure eruption that allows the shield volcano to split into two or more parts 
B) collapse of the north flank by landslides 
C) removal of magmas that form pillow basalt 
D) collapse of the roof of a magma chamber as magma erupts 
E) all of these 
A) a fissure eruption that allows the shield volcano to split into two or more parts 
B) collapse of the north flank by landslides 
C) removal of magmas that form pillow basalt 
D) collapse of the roof of a magma chamber as magma erupts 
E) all of these

Question 12

Which of the following is NOT a characteristic of a volcanic dome?

Accepted Answer

A) the outer part of the dome contains blocks and other rubble 
B) some parts contain volcanic glass,such as obsidian 
C) they are one of the largest types of volcanoes 
D) many domes are associated with composite volcanoes and calderas 
A) the outer part of the dome contains blocks and other rubble 
B) some parts contain volcanic glass,such as obsidian 
C) they are one of the largest types of volcanoes 
D) many domes are associated with composite volcanoes and calderas

Question 13

What type of volcanic eruption is probably shown in this photograph?

Accepted Answer

A) pyroclastic flow 
B) fire fountain 
C) basaltic lava flow 
D) felsic lava flow 
E) caldera eruption 
A) pyroclastic flow 
B) fire fountain 
C) basaltic lava flow 
D) felsic lava flow 
E) caldera eruption

Question 14

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 15

What is the main volcanic hazard at site 1?

Accepted Answer

A) lava flows 
B) small pyroclastic flow 
C) large,less frequent mudflows 
D) landslides from steep mountain fronts 
A) lava flows 
B) small pyroclastic flow 
C) large,less frequent mudflows 
D) landslides from steep mountain fronts

What is the main type of eruption that formed the volcano in this photograph?

This volcano is relatively small and composed of volcanic cinders.What kind of volcano is it?

Which of the following is a hazard but not a risk,according to the textbook?

At what depth do gas bubbles have the most effect on magma?

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

What type of basaltic feature is shown in this photograph?

Which of the following sites has volcanoes related to subduction? A is on an island arc,B is in the Andes,C is near Hawaii,D is along a mid-ocean ridge.

What type of eruption formed this felsic volcanic breccia?

This relatively large,symmetrical volcano contains interlayered lava flow,pyroclastic deposits,and volcanic mudflows.What kind of volcano is it?

Which of the following rock types is NOT characteristic of volcanic domes?

The main cause of caldera collapse is:

Which of the following is NOT a characteristic of a volcanic dome?

What type of volcanic eruption is probably shown in this photograph?

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

What is the main volcanic hazard at site 1?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

Glaciers, shorelines, and Changing Sea Levels

Weathering, soil, and Unstable Slopes

Streams and Flooding

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Exam 6: Volcanoes and Volcanic Hazards

What is the main type of eruption that formed the volcano in this photograph?

This volcano is relatively small and composed of volcanic cinders.What kind of volcano is it?

Which of the following is a hazard but not a risk,according to the textbook?

At what depth do gas bubbles have the most effect on magma?

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

What type of basaltic feature is shown in this photograph?

Which of the following sites has volcanoes related to subduction? A is on an island arc,B is in the Andes,C is near Hawaii,D is along a mid-ocean ridge.

What type of eruption formed this felsic volcanic breccia?

This relatively large,symmetrical volcano contains interlayered lava flow,pyroclastic deposits,and volcanic mudflows.What kind of volcano is it?

Which of the following rock types is NOT characteristic of volcanic domes?

The main cause of caldera collapse is:

Which of the following is NOT a characteristic of a volcanic dome?

What type of volcanic eruption is probably shown in this photograph?

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

What is the main volcanic hazard at site 1?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

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