Science teset Flashcards

(51 cards)

1
Q

what type of rocks are volcanoes made of

A

igneous

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2
Q

The term volcano originally came from the name for what

A

Roman God

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3
Q

A_____________ is a depositional mountain built up by molsten rock that has risen to the earth’s surface through a vent

A

volcano

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4
Q

a volcano begins to form when magma forces its way to the surfac and breaks through forming a hole or what

A

vent

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5
Q

what is magma that reaches the earth’s surface

A

lava

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6
Q

The depression found at the top of most volcanic cones is called a __________

A

Crater

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7
Q

What is a crater like depression cuased by an explosion or the collapse of a volcanic cone

A

caldera

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8
Q

Where does pillow lava form

A

under water

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9
Q

Does a pyroclastic flow or glowing avalanche contain both gases and hto solid particles

A

yes

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10
Q

A mudslide caused a volcano is called a what

A

lahar

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11
Q

A ______________ is a vent in the ground through which hot gasses escape

A

fumaroles

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12
Q

Is the term tephra used to descube flowing lava that has cooled and soldfied on the ground

A

no

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13
Q

What are tiny angular galassy garments of solid lava called

A

ash

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14
Q

What is a steramlined mass o ejected lava blobs that soldified in flight called

A

bomb

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15
Q

Which of these lists is in the correct order from samllest to largest ash cinder bomb ash bomb cinder cinder ahs bomb cinder bomb ash

A

ash cinder bomb

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16
Q

Is the circum pacific volcano belt sometimes called the ring of fire

A

yes

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17
Q

Are many volcanoes found in areas of tectonic activity

A

yes

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18
Q

Which organimsa re the base or first step of the food chainaround black smokers deep within the ocean

A

bacteria

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19
Q

Flood _____ are thick layers of igneous rock covering larege portions of teh eath they are thought to have formed whn huge quantitiies of mama were realeased through cracks in the earth’s curst

A

basalts

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20
Q

What is a volcao that emits molsty lava in quiet eruptions

A

shield volcanoes

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21
Q

Can volcanoes be classifeid by age structure and activity

22
Q

what is teh name of a volco that emists lava and solid debries in alternatley quiet and explosives eruptions

A

stratovolcanoes

23
Q

Do stratovolcaoes release lava and pyroclasitc materail that form layers or strata

24
Q

What is the name of a volcao that emits moslty cindrs, ahses, and bombs

25
Which of the following is not aterm realating to the activity levle of a volcano active inert extinct or dormatn
inert
26
What is the name of a colcao that has no historical reord of erpution and showing no seismic indications of activity deep undergoudn
extinct
27
Which of these volcanoes is located in the state of Washington
Mt saint helens
28
Have some volcaoes that were considered dormant erupted with disastrous reslults
yes
29
Which of the following statements descibes a typial young earth creation gologists view of volcanoes
most formed druing or shorly after the flood
30
The VEI of a volcnaos's eripton is based on what
The amount of tephra a volcano produces, Height of teh eruption cloud, and a dieseroptive estimate of teh explosian
31
Vertical is to dike as horizontal is to what
sills
32
are sill and dikes products of intrusive volcanism
yes
33
Did the eruption of MT. Tambora affect not just the island wher it occurered but the weateher of the entie eath for more than a year
yes
34
Batholiths and laccoliths are both types of what
plutons
35
does the term geothermal gradient refer to the way the temperature withing the earth decreases continouously with depth
no
36
Unlike hot springs geysers do not precuce distinct mineral epostis
false
37
A hydrotheraml circuit is best seen in what
eruption of a geyser
38
Is geyser water heated by magma
yes
39
A spring that periodically ejects large quantities of hot water and steam is known as a what
geyser
40
The internal energy of the eart, particularly evident in areas where hot springs and getsers exist, is sometimes harnessed for a man's use This is called____________ energy
geotheraml
41
Has geotheraml envergy become the larggs source of electricity in the United States
no
42
Which structure type is omposed of alternating layers of lava and cindrs
Stratovolcano
43
Study The Diagram
44
Channel for lava
neck
45
Intrusions
sill/dikes
46
side cone
parasitic vent
47
depression
crater
48
Layer of pyroclastic materail and ash
tephra
49
structure
composite cone
50
Molten rock
Magma chamber
51
erupts lava
vent