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WorksheetsPractice Questions - Volcanoes
Total questions: 20
Worksheet time: 10mins
what type of volcano do you see in this image?
Cinder Cone
Strato Volcano
Shield Volcano
What type of lava eruptions will build a volcano that looks like this?
Basaltic
Andesitic
Rhyolitic
What kind of volcano do you see in this picture?
Cinder Cone
Strato volcano
Shield Volcano
What type of magma does this volcano erupt?
basaltic
andesitic
rhyolitic
Where does basaltic magma come from?
Divergent boundaries
subduction zones
hot spots
divergent boundaries and hot spots
Where does intermediate/andesitic magma come from?
divergent boundaries
subduction zones
hot spots
divergent boundaries and hot spots
which type of magma as the lowest amount of silica?
basaltic
andesitic
rhyolitic
Which type of magma does not flow at all.
basaltic
intermediate/andesitic
rhyolitic
How does the amount of silica in a magma affect the viscosity of the magma?
more silica = faster flow
more silica = slower flow
The ring of fire is mostly made of what type of volcanoes?
cinder cones
strato volcanoes
shield volcanoes
What is usually the first sign that a volcano might be getting ready to erupt?
earthquakes
ground deformation
heat flow changes
True or False: A single volcano tends to have an eruptive style that it always erupts in.
true
false
True or False: A volcano can erupt in ways that are not usual for it, but it doesn't happen often.
true
false
What causes ground deformation?
volcanic gases
magma pushing up under the ground
water turning to steam
What type of magma do you see in this picture?
basaltic
intermediate/andesitic
rhyolitic
Does the magma you see erupting here have trapped gasses in it?
yes
no
A volcano along the Juan de Fuca ridge will be erupting what type of magma?
basaltic
intermediate/andesitic
rhyolitic
which type of volcanic hazard can travel the farthest?
lava flow
pyroclastic flow
lahar
Which of the following signs of an eruption were the big ones before Mt. St. Helen's erupted?
earthquakes and ground deformation
ground deformation and gases
gases and heat flow
heat flow and earthquakes
which of the following gases given off by a volcano is a warning that it might erupt soon?
water vapor
carbon dioxide
sulfur dioxide
carbon dioxide and sulfur dioxide
