Volcanos Question Preview (ID: 39213)


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A ____________ is a bowl-shaped area at the top of a volcano that forms around a central vent.
a) tube
b) pipe
c) Crater
d) vent

A ________ forms After a violent eruption blows the top of the volcano, the magma chamber empties and collapse in on itself.
a) volcanic neck
b) Caldera
c) Geyser
d) ash

What is pyroclastic material and during what type of eruption do they occur?
a) Volcanic bombs, cinders, ash, gases and they happen during explosive eruptions
b) Volcanic bombs, cinders, ash, gases and they happen during quiet eruptions
c) Volcanic bombs, cinders, ash, gases and they happen during low eruptions
d) Volcanic bombs, cinders, ash, gases and they happen during high eruptions

Describe a quiet eruption.
a) Quiet stream of lava flows onto land
b) hurling out ash cinders bombs and gases
c) explosion of gas
d) Pyroclastic flow

What does it mean for a volcano to be described as active?
a) never erupting
b) Sleeping for now
c) Erupting now or in the near future.
d) erupting in 120000 years

A ______________ volcano is medium sized volcanic cone made of explosive eruptions--ash, cinders, bombs.
a) Cinder cone
b) Shield
c) Composite
d) Ash

A __________ is a weak spot in the crust where molten material rises to the surface.
a) hot spot
b) Magma
c) Volcano
d) Mantle

A ______________ volcano is made of thin lava.
a) Caldera
b) Cinder cone
c) Composite
d) Shield

The ___________________ is a major volcanic belt around the Pacific Ocean.
a) plate boundaries
b) Ring of death
c) ring of fire
d) ring of volcanos

What does it mean for a volcano to be described as extinct?
a) Extinct
b) dormant
c) active
d) sleeping

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