volcaoes
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University of the Fraser Valley *
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118
Subject
Geology
Date
Jan 9, 2024
Type
docx
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Uploaded by CountKouprey12218
Certainly, here are some multiple-choice questions (MCQs) about volcanoes:
1. What is a volcano?
(A) A type of earthquake.
(B) A mountain that emits hot gases and lava.
(C) A type of storm.
(D) A deep ocean trench.
Correct Answer: (B)
2. Which type of volcano is characterized by steep-sided, explosive eruptions and is often
considered the most dangerous type?
(A) Shield volcano.
(B) Cinder cone volcano.
(C) Stratovolcano (composite volcano).
(D) Lava dome volcano.
Correct Answer: (C)
3. What is the molten rock that flows from a volcano during an eruption called?
(A) Pyroclastic flow.
(B) Lava.
(C) Ash.
(D) Magma.
Correct Answer: (B)
4. Which volcanic gas poses health risks to humans and can cause respiratory problems when
released during an eruption?
(A) Carbon dioxide (CO2).
(B) Oxygen (O2).
(C) Nitrogen (N2).
(D) Hydrogen (H2).
Correct Answer: (A)
5. Which famous volcano erupted in 79 AD, burying the cities of Pompeii and Herculaneum in
volcanic ash and lava?
(A) Mount St. Helens.
(B) Mount Fuji.
(C) Mount Vesuvius.
(D) Mauna Loa.
Correct Answer: (C)
6. What term is used to describe small, solid volcanic fragments ejected during an eruption?
(A) Lava.
(B) Magma.
(C) Tephra.
(D) Pyroclastic flow.
Correct Answer: (C)
7. Which type of volcano is characterized by broad, gently sloping sides and relatively non-
explosive eruptions?
(A) Stratovolcano (composite volcano).
(B) Cinder cone volcano.
(C) Shield volcano.
(D) Caldera volcano.
Correct Answer: (C)
8. What is a caldera?
(A) A type of volcanic rock.
(B) A volcano that emits only steam and gas.
(C) A large, crater-like depression formed by the collapse of a volcanic mountain after an
eruption.
(D) A small volcanic island.
Correct Answer: (C)
9. Which type of eruption is characterized by a sudden, violent release of gas and ash, often
leading to the collapse of the volcano's summit?
(A) Effusive eruption.
(B) Plinian eruption.
(C) Strombolian eruption.
(D) Hawaiian eruption.
Correct Answer: (B)
10. What instrument is used to monitor volcanic activity and predict eruptions by measuring
ground movement?
(A) Barometer.
(B) Seismometer.
(C) Anemometer.
(D) Hygrometer.
Correct Answer: (B)
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