19 Questions
How are Composite Cone Volcanoes different from Cinder Cone Volcanoes?
Composite Cone Volcanoes are made of alternating layers of lava and pyroclastic materials, whereas Cinder Cone Volcanoes are built from ejected lava fragments.
What is the function of a Side Vent on a volcano?
To release ash and gas clouds during a volcanic eruption.
Which part of a volcano is responsible for holding the hot liquid rock beneath the Earth's surface?
Magma Chamber
Which type of volcano is characterized by the slow extrusion of viscous lava resulting in circular, mound-shaped protrusions?
Lava Dome
What type of eruptions are characterized by lava fountains and the ejection of egg-shaped materials?
Strombolian
Which type of volcano is unlikely to erupt again based on geological assessments and historical records?
Extinct Volcano
What does PHIVOLCS stand for?
Philippine Institute of Volcanology and Seismology
Which geophysical technique monitors the conductivity of rocks underneath the Earth to indicate volcanic activity?
Geophysical Technique
What is the purpose of using Satellite Remote Sensing Systems in the context of the text?
Exploration of mineral resources
A volcano is a mountain that opens downward to a pool of molten rock known as ____________.
magma
The highest point or apex of a volcano is called the ____________.
summit
The region beneath the vent of a volcano where molten rock or magma is stored is known as the Magma ____________.
chamber
Composite Cone Volcanoes, also known as stratovolcanoes, are produced when viscous lava of andesitic composition flows out. A mound is built from alternating layers of lava and ____________ materials.
pyroclastic
______ Volcano is formed by less viscous basaltic lava flows.
Shield
Lava Dome eruptions may be weak or extremely violent and are characterized by ______ fountains.
lava
Pelean eruptions have high water and ______ content.
silica
Phreatomagmatic eruptions result from ejection of magmatic gases and steam produced by the conversion of groundwater to steam by ascending ______.
magma
Plinian eruptions are characterized by voluminous ejections of pumice and ______ flows.
ash
Active Volcanoes have erupted during the ______.
Holocene
This quiz covers the phenomenon of volcanism, volcano formation, types of volcanoes, and parts of a volcano such as summit, slopes, and base. Learn about magma, lava, underwater volcanoes, hot spot volcanoes, and the connection between volcanoes and melted crust or subduction.
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