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Volcano
Test Description: Chapter 5 Earth's Structure
Instructions: Answer all questions to get your test result.
1) The main hazard from a quiet volcanic eruption is
A
geysers.
B
pyroclastic flows.
C
volcanic gases.
D
lava flows.
2) When many layers of thin, runny lava build up a high, level area, the result is a
A
cinder cone volcano.
B
composite volcano.
C
shield volcano.
D
lava plateau.
3) A mass of rock that forms when a large body of magma cools inside the crust is called a(n)
A
lava plateau
B
caldera
C
volcanic neck
D
batholith
4) The bowl-shaped area around a volcano’s central vent is called a(n) ____________________.
A
magma chamber
B
crater
C
volcanic neck
D
caldera
5) In which location would you most likely find volcanoes?
A
far from plate boundaries
B
along mid-ocean ridges and where a plate is subducted
C
along transform boundaries
D
where two continental plates collide
6) Before lava reaches the surface, the molten material is called
A
liquid fire.
B
volcanic ash.
C
magma.
D
D) rock.
7) When ash, cinders, and bombs build up in a steep pile around a volcano’s vent, the result is a
A
shield volcano.
B
cinder cone volcano.
C
dormant volcano.
D
composite volcano.
8) Which of the following volcano hazards is made up of fine, rocky particles as small as a speck of dust?
A
volcanic bombs
B
volcanic cinders
C
volcanic ash
D
pahoehoe
9) The main factor that accounts for the difference between quiet and explosive volcanic eruptions is
A
the iron content of the magma.
B
the size of the volcano’s magma chamber.
C
the silica content of the magma.
D
the age of the volcano.
10) The smallest lava fragments produced by an explosive eruption are called volcanic ____________________.
A
cinders
B
bombs
C
ash
D
necks
11) Sometimes rising magma is blocked by layers of rock. The magma forces the layers of rock to bend upward into a landform called a(n) _________________________.
A
dome mountain
B
composite volcano
C
caldera
D
batholith
12) A mass of rock formed when a large body of magma cools inside the crust is called a
A
batholith
B
lava plateau.
C
dike
D
neck.
13) The huge hole left by the collapse of a volcanic mountain is called a
A
shield volcano.
B
cinder cone.
C
lava plateau.
D
caldera
14) What provides the force that causes magma to erupt to the surface?
A
the density of the magma
B
gravity in the lithosphere
C
the silica in the magma
D
dissolved gases trapped in the magma
15) A string of islands known as a(n) ____________________ can form from the collision of two oceanic plates.
A
island arc
B
ring of fire
C
caldera
D
hot spot island
16) Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called
A
lava plateaus.
B
cinder cone volcanoes.
C
composite volcanoes.
D
shield volcanoes.
17) When magma hardens in a volcano’s pipe, the result will eventually be a landform called a
A
volcanic neck
B
sill
C
batholith
D
dike
18) Molten material that leaves a volcano’s vent is called ____________________.
A
bombs
B
magma
C
lava
D
cinders
19) A major volcanic belt known as the _________________________ circles the Pacific Ocean.
A
Subduction Zone
B
Ring of Fire
C
Mid Ocean Ridge
*select an answer for all questions
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