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Volcanic Eruptions
An example of mid-oceanic ridge is the:
mid-arctic ridge
mid-Asian ridge
mid-European ridge
mid-Atlantic ridge
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rikazzz
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Volcanic Eruptions
When an oceanic plate sub ducts beneath a continental plate to melt into the mantle is known as:
Underwater volcanism
Volcanism at Destructive plate boundary
Volcanism at hotspot
Earthquake Volcanism
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rikazzz
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Volcanic Eruptions
Basic lava erupts out of the volcano, throwing out mainly:
ash
dust
CO
CO2
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rikazzz
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Volcanic Eruptions
Composite volcanoes are made up of alternate layers of:
ash and cinder only
dense lava and ash
viscous lava, ash and cinder
pyroclastic lava, ash and cinder
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rikazzz
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Volcanic Eruptions
Iceland, one of the world’s largest islands, sits on the northern crest of the:
western ridge
eastern ridge
mid-Atlantic ridge
mid-oceanic ridge
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rikazzz
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Volcanic Eruptions
Due to less amount of silica, the basic lava is:
more viscous than acid lava
more light than acid lava
less viscous than acid lava
less dense than acid lava
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rikazzz
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Volcanic Eruptions
An example of composite volcanoes is:
Mount Everest
Puy de Dome
Mauna Loa
Mount Merapi
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Volcanic Eruptions
The passageway which joins the vent to the crater of the volcano is known as:
Vent
Cone
Pipe
Crater
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Volcanic Eruptions
Acid lava is sticky or ‘viscous’ because it contains high amounts of:
copper
iron
nickel
silica
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rikazzz
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Volcanic Eruptions
The fluidity of lava is determined by the amount of:
copper
iron
nickel
silica
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rikazzz
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