Question 1

Besides monitoring,what other knowledge helps geologists determine what to expect for eruptions from a given volcano?

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Question 2

Pyroclastic material that is less than 2 mm in diameter is called ____________________.Particles ranging from 2 to 64 mm in diameter are known as ____________________,while ____________________ are pieces larger than 64 mm in diameter.

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Question 3

Pahoehoe is lava erupted by Hawaiian volcanoes that has a(n)____________________ viscosity and a(n)____________________ appearance.

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Question 4

What does harmonic tremor indicate is happening beneath the surface of a volcano?

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Question 5

Composite volcanoes are also known as ____________________ and are composed of both ____________________ flows and ____________________ material.

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Question 6

Lavas of ____________________ composition are more likely to produce lava domes.

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Question 7

The one place on earth where mid-ocean ridge volcanism occurs above sea level is ____________________.

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Question 8

Volcanic activity that takes place away from plate boundaries is the result of volcanism at a(n)____________________.In the U.S.,an example of this type of volcanism in the ocean is ____________________; an example on land is ____________________.

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Question 9

Why does most volcanism at spreading ridges go undetected?

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Question 10

The type of volcano that is the most common in the two major volcanic belts on Earth is ____________________.

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Question 11

An extinct volcano is one that ____.

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An extinct volcano is one that has not erupted during recorded history and has shown no evidence of activity over recorded history. Choice A only implies that it existed in the past, but does not necessarily mean it is extinct. Choice B only refers to recorded history, but evidence of activity could exist in the geological record. Choice C is similar to B, but the use of "shown no evidence" is ambiguous. Therefore, D is the best choice as it combines both the lack of recent eruptions and lack of evidence of past activity.

Question 12

Sometimes the pyroclastic material that flows from a volcano is so hot that it fuses together to form a deposit known as ____________________.

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Question 13

Columnar joints caused by the contraction of lava as it cools form typically in a(n)____________________ shape.

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Question 14

One common but dangerous gas emitted from volcanoes,which is responsible for many deaths in Cameroon,is ____________________.

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Question 15

The eruption that buried the city of Pompeii,Italy in 79 A.D.was that of Mount ____________________,which prior to the eruption had been quiet for at least ______ years.

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Question 16

Shield volcanoes are composed largely of lavas of ____________________ composition; they commonly have slopes that are ____________________,and their eruptions tend to be ____________________ in explosivity.

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Question 17

Mount Vesuvius is part of a chain of volcanoes along Italy's south coast where the ____________________ plate is being subducted beneath the ____________________ plate.

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Question 18

The dominant gas emitted from volcanoes is ____________________.

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Question 19

Cinder cones rarely reach heights greater than ____________________; they are composed of ____________________ material of ____________________ composition.

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Question 20

At Laki fissure in Iceland,the eruption of the gas ____________________ caused about 75 percent of the nation's livestock to die,25 percent of the population to die,and crops to fail.

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Quiz 5: Volcanoes and Volcanism

Besides monitoring,what other knowledge helps geologists determine what to expect for eruptions from a given volcano?

Pyroclastic material that is less than 2 mm in diameter is called .Particles ranging from 2 to 64 mm in diameter are known as ,while are pieces larger than 64 mm in diameter.

Pahoehoe is lava erupted by Hawaiian volcanoes that has a(n) viscosity and a(n) appearance.

What does harmonic tremor indicate is happening beneath the surface of a volcano?

Composite volcanoes are also known as and are composed of both flows and material.

Lavas of ____________________ composition are more likely to produce lava domes.

The one place on earth where mid-ocean ridge volcanism occurs above sea level is ____________________.

Volcanic activity that takes place away from plate boundaries is the result of volcanism at a(n).In the U.S.,an example of this type of volcanism in the ocean is ; an example on land is .

Why does most volcanism at spreading ridges go undetected?

The type of volcano that is the most common in the two major volcanic belts on Earth is ____________________.

An extinct volcano is one that ____.

Sometimes the pyroclastic material that flows from a volcano is so hot that it fuses together to form a deposit known as ____________________.

Columnar joints caused by the contraction of lava as it cools form typically in a(n)____________________ shape.

One common but dangerous gas emitted from volcanoes,which is responsible for many deaths in Cameroon,is ____________________.

The eruption that buried the city of Pompeii,Italy in 79 A.D.was that of Mount ______________,which prior to the eruption had been quiet for at least years.

Shield volcanoes are composed largely of lavas of composition; they commonly have slopes that are ,and their eruptions tend to be in explosivity.

Mount Vesuvius is part of a chain of volcanoes along Italy's south coast where the plate is being subducted beneath the plate.

The dominant gas emitted from volcanoes is ____________________.

Cinder cones rarely reach heights greater than ; they are composed of material of composition.

At Laki fissure in Iceland,the eruption of the gas ____________________ caused about 75 percent of the nation's livestock to die,25 percent of the population to die,and crops to fail.