GLY1880 Exam 2 2026 Exam
Questions and Verified Answers
| Already Graded A+
Which size of tephra travels the farthest?
a) bombs
b) blocks
c) lapilli
d) ash - 🧠 ANSWER ✔✔d) ash
,Which of the following are common impacts of ash?
a) damage to water and food supplies
b) damage to airplanes
c) impacts to agriculture
d) all of these - 🧠 ANSWER ✔✔d) all of these
A lahar is a mixture of rock fragments and ____
a) concrete
b) water
c) gases
d) exploding volcanic bombs - 🧠 ANSWER ✔✔b) water
Lahars, pyroclastic flows, and landslides would be expected to be more
common on composite volcanoes than shield volcanoes because:
a) composite volcanoes have less volcanic gases
b) basalt slides more easily than pyroclastic material
,c) composite volcanoes have steeper sides than shield volcanoes - 🧠
ANSWER ✔✔c) composite volcanoes have steeper sides than shield
volcanoes
Which of the following is an important difference between lahars and
landslides?
a) lahars have a higher amount of water
b) lahars are slower moving
c) lahars have more gas
d) lahars only occur during eruptions - 🧠 ANSWER ✔✔a) lahars have a
higher amount of water
In terms of hazards from carbon dioxide, pyroclastic flows, and lahars, the
most dangerous location is:
a) low lying areas
b) ridge tops
c) all areas are equally dangerous
d) the top of the volcano - 🧠 ANSWER ✔✔a) low lying areas
Which of the following is true of lava flows?
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, a) mafic magma generally flows more slowly than felsic magma
b) lava flows generally cause less deaths than pyroclastic flows or lahars
c) most homeowners can rebuild within a few months after a lava flow
covers their property
d) none of these - 🧠 ANSWER ✔✔b) lava flows generally cause less deaths
than pyroclastic flows or lahars
Carbon dioxide from volcanoes has caused deaths because it tends to:
a) collect in low lying areas
b) explode
c) trigger earthquakes
d) quickly rise and expand - 🧠 ANSWER ✔✔a) collect in low lying areas
Sulfur dioxide can:
a) enhance the ozone layer
b) contribute more greenhouse gas each year than from human activities
c) irritate respiratory systems
d) all of these - 🧠 ANSWER ✔✔c) irritate respiratory activities
Questions and Verified Answers
| Already Graded A+
Which size of tephra travels the farthest?
a) bombs
b) blocks
c) lapilli
d) ash - 🧠 ANSWER ✔✔d) ash
,Which of the following are common impacts of ash?
a) damage to water and food supplies
b) damage to airplanes
c) impacts to agriculture
d) all of these - 🧠 ANSWER ✔✔d) all of these
A lahar is a mixture of rock fragments and ____
a) concrete
b) water
c) gases
d) exploding volcanic bombs - 🧠 ANSWER ✔✔b) water
Lahars, pyroclastic flows, and landslides would be expected to be more
common on composite volcanoes than shield volcanoes because:
a) composite volcanoes have less volcanic gases
b) basalt slides more easily than pyroclastic material
,c) composite volcanoes have steeper sides than shield volcanoes - 🧠
ANSWER ✔✔c) composite volcanoes have steeper sides than shield
volcanoes
Which of the following is an important difference between lahars and
landslides?
a) lahars have a higher amount of water
b) lahars are slower moving
c) lahars have more gas
d) lahars only occur during eruptions - 🧠 ANSWER ✔✔a) lahars have a
higher amount of water
In terms of hazards from carbon dioxide, pyroclastic flows, and lahars, the
most dangerous location is:
a) low lying areas
b) ridge tops
c) all areas are equally dangerous
d) the top of the volcano - 🧠 ANSWER ✔✔a) low lying areas
Which of the following is true of lava flows?
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, a) mafic magma generally flows more slowly than felsic magma
b) lava flows generally cause less deaths than pyroclastic flows or lahars
c) most homeowners can rebuild within a few months after a lava flow
covers their property
d) none of these - 🧠 ANSWER ✔✔b) lava flows generally cause less deaths
than pyroclastic flows or lahars
Carbon dioxide from volcanoes has caused deaths because it tends to:
a) collect in low lying areas
b) explode
c) trigger earthquakes
d) quickly rise and expand - 🧠 ANSWER ✔✔a) collect in low lying areas
Sulfur dioxide can:
a) enhance the ozone layer
b) contribute more greenhouse gas each year than from human activities
c) irritate respiratory systems
d) all of these - 🧠 ANSWER ✔✔c) irritate respiratory activities
