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1
answer
Powerful, explosive, volcanic eruptions can result in climatic cooling for millions of years following the eruption.
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
true-or-false
climatic
eruption
explosion
volcanic
1
answer
The eruptions of the Hawaiian volcanoes may be described as explosive in comparison to the 1980 Mount St. Helens
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
true-or-false
hawaii
explosion
st-helens
eruption
volcanoes
1
answer
The viscosities of magmas increase with increasing percentages of silica.
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
viscosity
magma
silica
percentage
true-or-false
1
answer
Ash and lapilli are different sized pyroclastic particles.
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
true-or-false
ash
lapilli
pyroclastic
particle
1
answer
Dissolved gases may comprise up to a few percent by weight of a magma.
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
true-or-false
magma
gases
1
answer
Xenoliths are associated most closely with which magmatic process and igneous rockbody?
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
xenoliths
magma
igneous
rock
vesiculation
lava
1
answer
Which of the following best describes the bedrock in the Sierra Nevada Mountains in California?
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
basaltic
andesitic
granite
batholiths
1
answer
A ________ is a near surface, intrusive, igneous rock body that results from local inflation of a horizontal sill.
asked
Jun 23, 2022
in
World
world
world-quiz
earth-quiz
batholith
dike
laccolith
volcanic-neck
sill
1
answer
A very large, discordant pluton, commonly of composed of granite is a ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
discordant
pluton
granite
1
answer
A ________ is an intrusive, igneous rock body that is tabular and concordant.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
laccolith
dike
pluton
sill
igneous
concordant
1
answer
A ________ is the largest, discordant body of intrusive, igneous rock.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
lopolith
laccolith
pluton
batholith
igneous
1
answer
What is the largest, known volcano in the Solar System?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
largest-volcano
solar-system
hawaii
olympus
1
answer
Why do magmas rise toward Earth's surface?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
magma
viscosity
crus
mantle
silica
1
answer
Which one of the following shows the correct order (left to right) of decreasing magma viscosity?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
rhyolite
andesite
basaltic
magma
viscosity
1
answer
What volcanic events formed Crater Lake, OR? When did they take place?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
crater-lake
explosion
stratovolcanoes
caldera
pyroclastic
1
answer
At low pressures and in the absence of water, rhyolites and granites begin to melt at about ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
pressure
rhyolite
granite
melt
1
answer
Which of the following statements best describes the big Hawaiian volcanoes?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
hawaiian
volcanoes
mantle
subduction
pacific
1
answer
Which one of the following best describes volcanism in the Cascade Range, northwestern United States?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
volcanism
cascade-range
us
subduction
ridge-system
1
answer
The Icelandic volcanoes are related to plate tectonics because ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
icelandic
volcanoes
tectonics
subduction
1
answer
The recent (geologically) volcanic activity in Yellowstone National Park is ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
volcanic
yellowstone
central-park
subduction
volcanism
1
answer
Which region has the greatest concentration of currently active volcanoes?
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
active
volcanoes
africa
siberia
red-sea
1
answer
A ________ volcano is a very large, gently sloping mound composed mainly of basaltic lava flows.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
volcanoes
basaltic
composite
cinder
cone
shield
1
answer
The average composition of rocks comprising a large composite cone or stratovolcano is similar to a (an) ________ magma.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
stratovolcanoes
basaltic
ultramafic
andesitic
rhyolitic
1
answer
The 1943 eruption of Paricutin in Mexico was characterized by ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
paricutin
mexico
explosion
eruption
caldera
pyroclastic
1
answer
Mount St. Helens is ________.
asked
Jun 22, 2022
in
World
world
world-quiz
earth-quiz
st-helens
basaltic
explosion
stratovolcanoes
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