Science: Volcanism and Volcano Parts

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How are Composite Cone Volcanoes different from Cinder Cone Volcanoes?

Composite Cone Volcanoes have low silica content, while Cinder Cone Volcanoes have high silica content.

Composite Cone Volcanoes are small, while Cinder Cone Volcanoes are large.

Composite Cone Volcanoes are formed near or inside large volcanoes, and Cinder Cone Volcanoes are produced by alternating layers of lava and pyroclastic materials.

Composite Cone Volcanoes are made of alternating layers of lava and pyroclastic materials, whereas Cinder Cone Volcanoes are built from ejected lava fragments. (correct)

What is the function of a Side Vent on a volcano?

To store molten rock beneath the volcano's main vent.

To erupt through the Earth's surface creating lava flows.

To build alternate layers of lava and pyroclastic materials.

To release ash and gas clouds during a volcanic eruption. (correct)

Which part of a volcano is responsible for holding the hot liquid rock beneath the Earth's surface?

Magma Chamber (correct)

Crater

Summit

Base

Which type of volcano is characterized by the slow extrusion of viscous lava resulting in circular, mound-shaped protrusions?

Lava Dome Signup and view all the answers

What type of eruptions are characterized by lava fountains and the ejection of egg-shaped materials?

Strombolian Signup and view all the answers

Which type of volcano is unlikely to erupt again based on geological assessments and historical records?

Extinct Volcano Signup and view all the answers

What does PHIVOLCS stand for?

Philippine Institute of Volcanology and Seismology Signup and view all the answers

Which geophysical technique monitors the conductivity of rocks underneath the Earth to indicate volcanic activity?

Geophysical Technique Signup and view all the answers

What is the purpose of using Satellite Remote Sensing Systems in the context of the text?

Exploration of mineral resources Signup and view all the answers

A volcano is a mountain that opens downward to a pool of molten rock known as ____________.

magma Signup and view all the answers

The highest point or apex of a volcano is called the ____________.

summit Signup and view all the answers

The region beneath the vent of a volcano where molten rock or magma is stored is known as the Magma ____________.

chamber Signup and view all the answers

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 Signup and view all the answers

______ Volcano is formed by less viscous basaltic lava flows.

Shield Signup and view all the answers

Lava Dome eruptions may be weak or extremely violent and are characterized by ______ fountains.

lava Signup and view all the answers

Pelean eruptions have high water and ______ content.

silica Signup and view all the answers

Phreatomagmatic eruptions result from ejection of magmatic gases and steam produced by the conversion of groundwater to steam by ascending ______.

magma Signup and view all the answers

Plinian eruptions are characterized by voluminous ejections of pumice and ______ flows.

ash Signup and view all the answers

Active Volcanoes have erupted during the ______.

Holocene Signup and view all the answers

Science: Volcanism and Volcano Parts

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