types of volcanoes

shield volcanoes

Shield volcanoes look like a huge ancient warriors shield laid down. Figure 8.16 shows the Kilaeua Volcano. A shield volcano has a very wide base. It is much flatter on the top than a composite volcano. The lava that creates shield volcanoes is reltively thin. The thin lava spreads out. This builds a large, flat volcano layer by layer. Shield volcanoes are very large. For example, the Mauna Loa Volcano has a diameter of more than 112 kilometers (70 miles). The volcano forms a significant part of the island of Hawaii. The top of nearby Mauna Kea Volcano is more than ten kilometers (6 miles) from its base on the seafloor. Shield volcanoes often form along divergent plate boundaries. They also form at hot spots, like Hawaii. Shield volcano eruptions are non-explosive.

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types of volcanoes

A composite volcano forms the tall cone shape you usually think of when you think of a volcano. Shield volcanoes are huge, gently sloping volcanoes. Cinder cones are small, cone-shaped volcanoes.

supervolcanoes

Supervolcanoes are the most dangerous type of volcano. During an eruption, enormous amounts of ash are thrown into the atmosphere. The ash encircles the globe. This blocks the Sun and lowers the temperature of the entire planet. The result is a volcanic winter. A supervolcano eruption took place at Lake Toba in northern Sumatra about 75,000 years ago (Figure 8.19). This was the largest eruption in the past 25 million years. As much as 2,800 cubic kilometers of material was ejected into the atmosphere. The result was a 6- to 10-year volcanic winter. Some scientists think that only 10,000 humans survived worldwide. The numbers of other mammals also plummeted. The most recent supervolcano eruption was in New Zealand. The eruption was less than 2000 years ago. For a supervolcano eruption it was small, about 100 cubic kilometers of material. A much larger super eruption in Colorado produced over 5,000 cubic kilometers of material. That eruption was 28 million years ago. It was 5000 times larger than the 1980 Mount St. Helens eruption. The largest potentially active supervolcano in North America is Yellowstone. The caldera has had three super eruptions at 2.1 million, 1.3 million and 640,000 years ago. The floor of the Yellowstone caldera is slowly rising upwards. Another eruption is very likely but no one knows when. The cause of supervolcano eruptions is being debated. Enormous magma chambers are filled with super hot magma. This enormous eruption leaves a huge hole. The ground collapses and creates a caldera.

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composite volcanoes

Figure 8.14 shows Mt. Fuji, a classic example of a composite volcano. Composite volcanoes have broad bases and steep sides. These volcanoes usually have a large crater at the top. The crater was created during the volcanos last eruption. Composite volcanoes are also called stratovolcanoes. This is because they are formed by alternating layers (strata) of magma and ash (Figure 8.15). The magma that creates composite volcanoes tends to be thick. The steep sides form because the lava cannot flow too far from the vent. The thick magma may also create explosive eruptions. Ash and pyroclasts erupt into the air. Much of this material falls back down near the vent. This creates the steep sides of stratovolcanoes. Composite volcanoes are common along convergent plate boundaries. When a tectonic plate subducts, it melts. This creates the thick magma needed for these eruptions. The Pacific Ring of Fire is dotted by composite volcanoes.

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cinder cones

Cinder cones are the smallest and most common type of volcano. Cinder cones have steep sides like composite volcanoes. But they are much smaller, rarely reaching even 300 meters in height. Cinder cones usually have a crater at the summit. Cinder cones are composed of small fragments of rock, called cinders. The cinders are piled on top of one another. These volcanoes usually do not produce streams of lava. Cinder cones often form near larger volcanoes. Most composite and shield volcanoes have nearby cinder cones. Cinder cones usually build up very rapidly. They only erupt for a short time. Many only produce one eruption. For this reason, cinder cones do not reach the sizes of stratovolcanoes or shield volcanoes (Figure 8.17).

calderas

During a massive eruption all of the material may be ejected from a magma changer. Without support, the mountain above the empty chamber may collapse. This produces a huge caldera. Calderas are generally round, bowl-shaped formations like the picture in Figure 8.18.

instructional diagrams

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This diagram shows a cross section of a composite volcano. Composite volcanoes have broad bases and steep sides. At the top of the volcano is the volcanic crater. Below the surface of the earth lies the magma chamber. This is a large underground pool of magma or molten rock. When a volcano erupts, magma travels from the magma chamber up the conduit channel and exits the volcano through the volcanic crater and side vents. Ash, smoke and steam are other byproducts of volcanic eruptions.

description_image

The lava begins in the magma chamber. It makes its way up the main vent and comes out of the crater. Volcanic bombs, ash, and an ash cloud are by products of a volcanic eruption. Lava can also come out of a secondary cone by the secondary vent.

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The diagram shows a simple cross section of a volcano. The bottom most part is the magma chamber, where the lava is stored. The lava flows out of the volcano through an opening called crater. The lava flows from the magma chamber to the crater through the main vent. During the flow, it also flows out through the secondary cone. The mountain like structure on the side are layers of ash and lava.

description_image

This diagram shows a cross-section of a composite volcano revealing alternating layers of lava and ash. The volcano grows larger with each eruption as lava and ash are deposited onto its surface. The magma that flows from volcanoes comes from underneath the Earth's crust in a magma chamber. It is thick and travels slowly, creating the volcano's steep sides. There are frequently craters at the top from the last eruption. When the volcano erupts from the vent at the top, it spews large amounts of ash into the air creating an ash cloud. Sometime the magma is diverted from the main vent and find its way out of the side of the volcano, creating a secondary vent. Over time, the If the magma remains trapped, it creates a sill.

questions

large, bowl-shaped depression that forms at the top of some volcanoes

-->  a. caldera

b. cinder cone

c. composite volcano

d. shield volcano

e. supervolcano

f. Kilauea

g. Fuji

Lava that is fluid and flows easily creates

a. cinder cones

b. pyroclastic flows

c. composite cones

-->  d. shield volcanoes

smallest and most common type of volcano

a. caldera

-->  b. cinder cone

c. composite volcano

d. shield volcano

e. supervolcano

f. Kilauea

g. Fuji

The opening in the top of a composite volcano is a

a. hole

-->  b. crater

c. fissure

d. vent

example of a shield volcano

a. caldera

b. cinder cone

c. composite volcano

d. shield volcano

e. supervolcano

-->  f. Kilauea

g. Fuji

Cinder cones usually grow

a. from large numbers of fluid lava flows

b. from periodic eruptions of lava and ash

-->  c. rapidly, usually in a single eruption

d. in large, explosive eruptions

A composite volcano has layers of

-->  a. thick lava and ash

b. fluid lava and viscous lava

c. ash and fluid lava

d. fluid lava, thick lava, and ash

volcano with a broad base and steep sides

a. caldera

b. cinder cone

-->  c. composite volcano

d. shield volcano

e. supervolcano

f. Kilauea

g. Fuji

example of a composite volcano

a. caldera

b. cinder cone

c. composite volcano

d. shield volcano

e. supervolcano

f. Kilauea

-->  g. Fuji

A caldera is created by

a. a set of fluid lava flows evacuating a magma chamber.

b. the earthquakes that accompany a large volcanic eruption.

c. a set of ash flows and lava flows building up a flat topped volcano.

-->  d. the collapse of a volcano into its magma chamber.

volcano that produces so much ash that it blocks the sun

a. caldera

b. cinder cone

c. composite volcano

d. shield volcano

-->  e. supervolcano

f. Kilauea

g. Fuji

volcano that forms a huge, gently sloping mountain

a. caldera

b. cinder cone

c. composite volcano

-->  d. shield volcano

e. supervolcano

f. Kilauea

g. Fuji

Composite and shield volcanoes differ in their

a. thickness of magm

b. overall shape.

c. type of eruptions.

-->  d. all of the above

Composite volcanoes are common at

a. divergent plate boundaries.

-->  b. subduction zones.

c. mid-ocean ridges.

d. hot spots.

Composite volcanoes are also called

a. cone volcanoes.

-->  b. stratovolcanoes.

c. cinder volcanoes.

d. convergent volcanoes.

Composite volcanoes are made of fluid magma.

a. true

-->  b. false

A shield volcano

-->  a. consists of layers of lav

b. is relatively small.

c. has very thick lava.

d. two of the above

The composition of lava in a shield volcano changes over time.

a. true

-->  b. false

A caldera forms when a

a. vent is plugged by magm

-->  b. magma chamber collapses.

c. crater fills with water.

d. lava field hardens.

Cinder cones are composed mainly of

-->  a. rock fragments.

b. thin lava.

c. magma.

d. ashes.

Magma travels through the volcano to the surface through a pipe.

-->  a. true

b. false

A supervolcano

-->  a. is the most dangerous type of volcano.

b. may cause Earths temperature to rise.

c. has no magma chamber.

d. produces no ash.

Supervolcanoes only erupted early in Earth history when the planet was hotter.

a. true

-->  b. false

A volcanic mountain is a mountain that forms when magma is forced upward and flows onto Earths

-->  a. true

b. false

Many composite volcanoes are found in the Pacific Ring of Fire.

-->  a. true

b. false

All volcanoes release ashes, gases, and pyroclasts.

a. true

-->  b. false

Composite volcanoes have steep sides because the lava cannot flow very far.

-->  a. true

b. false

Mauna Loa in Hawaii is an example of a composite volcano.

a. true

-->  b. false

A shield volcano has a flatter top than a composite volcano.

-->  a. true

b. false

Cinder cones have gently sloping sides like shield volcanoes.

a. true

-->  b. false

Most large volcanoes have nearby cinder cones.

-->  a. true

b. false

Cinder cones usually build up very rapidly.

-->  a. true

b. false

Cinder cones always erupt over a long period of time.

a. true

-->  b. false

The largest supervolcano in North America is Yellowstone.

-->  a. true

b. false

diagram questions

question_image

Identify the older rock

-->  a. K

b. E

c. H

d. V

question_image

Which letter stands for the plutonic rock?

a. E

b. V

c. K

-->  d. R

question_image

Where on the diagram is the baked zone?

a. R

-->  b. V

c. K

d. E

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Which letter represents the lava flow?

a. H

b. V

c. K

-->  d. E

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Through which part does the substance in part E reach part R?

-->  a. H

b. V

c. K

d. M

question_image

Identify K

a. PIPE

b. BEDROCK

-->  c. ASH CLOUD

d. LAVA FLOW

question_image

What part of the volcano represents letter y?

a. VENT

b. LAVA FLOW

c. ASH LAYER

-->  d. PIPE

question_image

Find the parasitic cone.

a. F

b. X

-->  c. V

d. E

question_image

What is the name for the label W?

a. CRUST

b. MAGMA

c. VENT

-->  d. CRATER

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Which label refers to the lava?

a. W

b. K

c. D

-->  d. R

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Identify the part of the volcano that is under the crust and the mantle.

-->  a. T

b. R

c. P

d. X

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What is the column called from which lava escapes the magma chamber?

a. BEDROCK

b. VENT

c. FLOW

-->  d. PIPE

question_image

Which label shows the dome volcano?

a. W

b. E

c. K

-->  d. Y

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Which of the volcanoes labeled in the diagram best identifies a composite volcano?

a. E

b. Y

c. K

-->  d. W

question_image

Which is a dome volcano?

-->  a. Y

b. W

c. K

d. M

question_image

What does the letter T correspond to?

a. CRATER

b. SECONDARY VENT

-->  c. MAIN VENT

d. MAGMA CHAMBER

question_image

Which of the labels identifies a plinian explosion?

a. P

b. L

-->  c. F

d. R

question_image

Which vulcan would you find in Hawaii?

a. F

b. L

c. R

-->  d. P

question_image

Which type of eruption has a larger ash cloud than a vulcanian eruption?

a. L

b. R

c. P

-->  d. F

question_image

Identify the parasitic cone.

-->  a. H

b. E

c. F

d. C

question_image

Which label refers to the ash cloud?

a. D

b. N

-->  c. T

d. C

question_image

The steep sides of a composite volcano are the result of alternating layers of:

a. BEDROCK AND PIPE

b. MAGMA CHAMBER AND MAGMA LAYERS

c. ASH CLOUD AND VENT

-->  d. ASH AND LAVA

question_image

Which label refers to the crater?

a. P

b. Y

c. J

-->  d. K

question_image

Which part represents a sill in the volcano?

a. T

b. F

c. W

-->  d. J

question_image

Identify the lava flow.

-->  a. P

b. C

c. A

d. S

question_image

Select the parasitic cone.

a. P

b. W

c. R

-->  d. S

question_image

How does a composite volcano form?

a. CRACKS IN THE GROUND NEAR MAGMA CHAMBERS

-->  b. MELTING OF THE TECTONIC PLATE DUE TO SUBDUCTION

c. THIN LAVA FLOWS

d. MASSIVE ERUPTION OF ASH

question_image

Identify the ash in this picture

-->  a. H

b. D

c. A

d. T

question_image

Which label represents the ash cloud?

a. P

b. T

-->  c. M

d. F

question_image

Which label represents the Main Vent?

a. K

b. T

c. X

-->  d. P

question_image

Which label shows the Main Vent?

a. T

b. L

c. K

-->  d. P

question_image

By what letter is the lava represented in the diagram?

a. S

b. T

c. Y

-->  d. L

question_image

Identify the crater cone

a. T

-->  b. S

c. U

d. L

question_image

What letter label is being used to denote the Crater Cone in this image?

a. U

b. L

-->  c. S

d. Y

question_image

Which letter represents lava?

-->  a. L

b. T

c. S

d. U

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Where is laved stored in U.

-->  a. THE MAGMA CHAMBER

b. CRATER CONE

c. VENT

d. THE SMOKE

question_image

Where is the cloud above the volcano?

-->  a. T

b. U

c. L

d. Y

question_image

What is the Volcano Landform represented with the letter S?

a. STRATOVOLCANO

b. SOMMA VOLCANO

c. CALDERA

-->  d. COMPLEX VOLCANO

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What type of volcano is labeled as 'C'?

a. SHIELD VOLCANO

b. CALDERA

-->  c. STRATOVOLCANO

d. COMPLEX VOLCANO

question_image

Which letter represents a shield volcano?

a. L

b. H

-->  c. X

d. S

question_image

Which type is next to the shield volcano?

-->  a. S

b. L

c. M

d. C

question_image

Which label indicates volcanic bombs?

-->  a. N

b. H

c. S

d. P

question_image

Which part depicts dust, ash, steam and gas?

-->  a. J

b. H

c. P

d. N

question_image

Identify the central vent in this picture

a. N

b. J

c. H

-->  d. S

question_image

Which represents the magma chamber?

a. P

b. S

-->  c. C

d. H

question_image

Which label represents the crater?

a. E

b. M

-->  c. X

d. D

question_image

Which label stands for the dyke?

a. N

b. D

-->  c. T

d. E

question_image

Which part of the volcano will the lava and ashes come out during eruption?

a. N

b. T

c. A

-->  d. X

question_image

Which label shows the ash cloud?

a. V

-->  b. C

c. Y

d. R

question_image

Find out the parasitic cone.

a. X

-->  b. V

c. C

d. M

question_image

Where is the top of the volcano?

a. F

b. M

-->  c. Y

d. V

question_image

What label represents the strata?

-->  a. N

b. W

c. E

d. J

question_image

Which label shows the central vent?

a. N

b. W

-->  c. J

d. E

question_image

Where is the ash and rock?

a. J

-->  b. S

c. N

d. W

question_image

By what letter is the crater represented in the diagram?

-->  a. T

b. V

c. L

d. E

question_image

Which label refers to the crater?

a. V

b. L

-->  c. T

d. N

question_image

Identify the magma in the following image:

-->  a. P

b. D

c. R

d. L

question_image

By what letter is the magma chamber represented in the diagram?

a. F

b. P

c. E

-->  d. J

question_image

Which label refers to the main vent?

-->  a. P

b. E

c. J

d. F

question_image

Identify the main vent of this volcano:

a. E

b. F

c. J

-->  d. P

question_image

Where is the magma center?

-->  a. F

b. E

c. J

d. P

question_image

Identify the fumaroles in this picture

-->  a. D

b. S

c. P

d. H

question_image

Which label refers to magma?

a. Y

-->  b. K

c. L

d. P

question_image

Identify the crank in the following image:

a. W

b. F

-->  c. N

d. M

question_image

Which letter in the diagram points to the 'conduit'?

-->  a. M

b. H

c. W

d. F

question_image

What do all four types of volcanos' have in common?

a. ash

b. caldera

c. vent

-->  d. magma

question_image

What type of volcano has a steep, convex slope?

-->  a. Dome

b. Calera

c. Composite

d. Shield

question_image

How many types of volcano are shown in the diagram?

a. 2

-->  b. 4

c. 3

d. 1

question_image

If there is no vent, what happens?

a. The magma will melt the layers of rock all the way to the surface.

b. Ash clouds will form.

-->  c. It will cease to be a volcano.

d. The ground will be much hotter.

question_image

Which volcanic eruption does not appear on the outside?

-->  a. Hawaiian eruption

b. vulcanian

c. plinian eruption

d. strombolian eruption

question_image

How many types of eruptions are shown in the diagram?

-->  a. 4

b. 2

c. 1

d. 3

question_image

Which type of eruption would most greatly impact a surrounding community?

-->  a. Pinion

b. Hawaiian

c. Strombolian

d. Vulcanian

question_image

What connects the crater to the magma chamber?

a. lava flow

b. secondary cone

c. secondary vent

-->  d. main vent

question_image

What is in the bottom of the volcano?

a. main vent

b. secondary cone

-->  c. magma chamber

d. pyroclastic flow

question_image

Where does the lava form?

a. Secondary Cone

-->  b. Magma Chamber

c. Main Vent

d. Secondary Vent

question_image

Which label shows part of a volcano that allows magma to reach the surface?

a. pyroclastic flow

-->  b. main vent

c. crater

d. secondary cone

question_image

How many parts are labeled to demonstrate an erupting volcano?

a. 7

b. 6

c. 4

-->  d. 9

question_image

How many vents are labelled?

a. 3

b. 1

-->  c. 2

d. 4

question_image

Which of the following is another opening aside from the vent?

a. Crater

-->  b. Side vent

c. Throat

d. Magma chamber

question_image

What is another name for the Magma Chamber?

a. Side Vent

b. Parasitic Cone

-->  c. Magma Reservoir

d. Branch Pipe

question_image

How many types of pipe is shown in the picture?

a. 1

b. 4

-->  c. 2

d. 3

question_image

What is the bowl-shaped depression on top of a volcano?

a. Side Vent

b. Parasitic Cloud

c. Lava Flow

-->  d. Crater

question_image

Which is a composite volcano among the following.

a. Mauna Loa Volcano

b. Kilaeua Volcano

-->  c. Mt. Fuji.

d. Mauna Kea Volcano

question_image

From the diagram, identify the part that connects the magma reservoir to the crater.

-->  a. conduit

b. sill

c. vent

d. lava flow

question_image

What connects the magma reservoir to the crater?

-->  a. conduit

b. ash

c. lava

d. sill

question_image

How many vents are depicted in the volcano diagram?

-->  a. 2

b. 1

c. 4

d. 3

question_image

Which does NOT come to the surface?

-->  a. Dike

b. Lava

c. Gases

d. Ashes

question_image

How many craters are shown in the diagram?

a. 2

b. 4

-->  c. 1

d. 3

question_image

What comes out of the top of a volcano?

a. Dike

b. Older layers

-->  c. Magma

d. Vent

question_image

It is the large underground pool of liquid rock found beneath the surface of the Earth.

-->  a. Magma chamber

b. lava flow

c. main vent

d. ash cloud

question_image

How does the magma chamber release lava flow?

a. Volcanic Bombs

b. Pyroclastic flow

-->  c. Through the main and side vent

d. Side Cone

question_image

What links the magma chamber to the side cone?

-->  a. side vent

b. volcanic bomb

c. ash cloud

d. main vent

question_image

From the diagram, how many kind of vents are there?

a. 1

b. 3

-->  c. 2

d. 4

question_image

How many vents does the volcano structure contain?

-->  a. 2

b. 4

c. 3

d. 1

question_image

What connects the side cone to the magma chamber?

a. volcanic bombs

b. main vent

-->  c. side vent

d. pyroclastic flow

question_image

What is produced from magma and the crater cone?

-->  a. ash and gas

b. rocks

c. grass

d. water

question_image

How many parts of the volcano are described in the diagram?

-->  a. 5

b. 3

c. 4

d. 6

question_image

How many stages of magma are shown in the image?

a. 3

-->  b. 5

c. 2

d. 4

question_image

What connects the crater cone to the magma chamber?

a. ash and gas cloud

b. slope

c. lava

-->  d. vent

question_image

What is built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater?

a. Ash

-->  b. Crater Cone

c. Lava

d. Vent

question_image

What connects the magma chamber with the crater?

a. layers of lava and ash

b. side vent

c. ash cloud

-->  d. main vent

question_image

Which vent creates an ash cloud?

a. side vent

b. crater

c. magma chamber

-->  d. Main vent

question_image

The ash cloud comes from what?

a. main vent

-->  b. Magma chamber

c. crater

d. side vent

question_image

How many vents are indicated in the diagram?

a. 1

-->  b. 2

c. 4

d. 3

question_image

What connects the crater to the magma chamber?

a. ash cloud

b. side vent

c. lava

-->  d. main vent

question_image

What do you call the main outlet for the magma to escape?

a. Ash Cloud

b. Side Vent

c. Crater

-->  d. Main Vent

question_image

Which identified part of the volcano is visible when it's in an eruption?

a. Crater

b. Magma Room

-->  c. Ash and rock

d. Magma Pipe

question_image

What is found at the bottom layer of the volcano?

a. Ash and Rock

b. Magma pipe

-->  c. Magma

d. Crater

question_image

What connects the magma room to the crater?

a. ash

b. magma

-->  c. magma pipe

d. rock

question_image

Where does the lava come out of?

a. Magma room

b. Magma

c. Magma Pipe

-->  d. Crater

question_image

How many items are below the ash and rock?

a. 5

b. 3

-->  c. 4

d. 1

question_image

What if Magma chamber/room is removed?

a. magma will not flow

b. nothing happerns

c. magma will not erupt

-->  d. There is no storage for magma

question_image

What is pushed upwards through the volcano to cause an eruption?

a. Air

b. Ash

c. Rock

-->  d. Magma

question_image

What structure is used to expel the magma from the plutonic rock?

-->  a. Dike

b. Baked Zone

c. Older Rock

d. Lava Flow

question_image

What is contained between the lava flow and the plutonic rock?

-->  a. Baked Zone

b. Newer Rock

c. Dike

d. Older Rock

question_image

What separates the older rock from the plutonic rock?

a. Lava

-->  b. Baked zone

c. Dike

d. Lava flow

question_image

Where does lava come from?

a. Lava flow

b. Older rock

c. Baked zone

-->  d. Plutonic Rock

question_image

This type of igneous rock forms when magma cools off beneath the Earth's surface.

a. Sedimentary Rock

-->  b. Intrusive Igneous Rock

c. Extrusive Igneous Rock

d. Metamorphic Rock

question_image

What happens when the magma comes to the earth's surface?

a. It stays magma

b. It becomes intrusive igneous rock

c. It creates small islands

-->  d. It becomes extrusive igneous rock

question_image

How many types of Igneous Rock is shown in the diagram?

a. 3

-->  b. 2

c. 4

d. 1

question_image

From where does magma come out as lava and cool on the surface?

-->  a. Extrusive Igneous Rock

b. Earth's surface

c. Magma

d. Intrusive Igneous Rock

question_image

What forms when magma cools off beneath the surface?

a. metamorphic rock

b. extrusive igneous rock

-->  c. intrusive igneous rock

d. sedimentary rock

question_image

What is the name of the bottom depicted eruption?

-->  a. Pelean eruption

b. Plinian eruption

c. Icelandic eruption

d. Hawaiian eruption

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Which eruption ejects ash to the highest altitude?

-->  a. Pinian eruption

b. Pelean eruption

c. Vulcanian eruption

d. Strombolian eruption

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How many types of volcanic eruptions are there?

a. 2

-->  b. 6

c. 3

d. 4

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Is the Icelandic and Plinian eruption the same?

a. Cannot answer from the given information

b. Yes

-->  c. No

d. Sometimes

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Which eruption does not come from a mountain?

a. Hawaiian

b. Plinian

c. Vulcanian

-->  d. Icelandic

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What type of volcano has an almost flat top?

a. Caldera

b. Stratovolcano

-->  c. Shield volcano

d. Somma volcano

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How are shield volcanoes different from strata volcanoes?

-->  a. A shield volcano is mostly flat while a stratovolcano is steep.

b. A shield volcano has explosive eruptions while a stratovolcano has non-explosive eruptions.

c. A stratovolcano has thin lava while a shield volcano has thick lava.

d. A stratovolcano is mostly flat while a shield volcano is steep.

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Which type of volcano has a broad, flat, domed shape with gently sloping sides?

a. Stratovolcano

b. Caldera

c. Complex Volcano

-->  d. Shield Volcano

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From the diagram, how many types of volcanic landforms are there?

-->  a. 5

b. 2

c. 4

d. 3

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How many types of volcanic landforms are there in the diagram given below?

a. 2

b. 3

c. 4

-->  d. 5

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What is not a product of a volcano?

a. Ash

b. Smoke

-->  c. Water

d. Lava

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How many volcanic mountains in the diagram?

a. 2

b. 3

c. 4

-->  d. 1

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What connects the magma chamber to the earth's surface?

a. lava

b. earth's crust

-->  c. central vent

d. volcanic bombs

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How does magma in the magma chamber reach the volcanic crater?

a. It climbs through the side vents.

-->  b. It passes through the central vent.

c. It melts the Earth's crust.

d. It is expelled by the dust cloud.

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Which is the main exit of lava in a volcano?

-->  a. Central vent

b. Magma Chamber

c. Side vent

d. Earth Crust

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From the diagram, how many kind of vents are there?

a. 1

-->  b. 2

c. 4

d. 3

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How many parts of the volcano are labeled in the diagram?

a. 7

-->  b. 8

c. 5

d. 6

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What do you call a melted rock from a volcano?

a. Crater

b. Bomb

-->  c. Lava

d. Steam

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Which of the following is an output of a volcano?

a. Conelet

b. Crater

-->  c. Pyroclastic flow

d. Flank eruption

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What is usually found on top of an active volcano?

-->  a. Crater

b. Flank eruption

c. Crust

d. Lava flow

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Which of the following is the large opening of the volcano?

a. dyke

b. conelet

-->  c. crater

d. crust

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From the diagram, what connects the magma chamber to the crater?

a. side vent

b. branch pipe

-->  c. conduit

d. parasitic cone

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How many layers of lava and ash emitted by the volcano is shown on the picture?

-->  a. 8

b. 5

c. 7

d. 6

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How many volcanic vents are in the diagram?

a. 1

b. 3

-->  c. 2

d. 0

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What connects the crater to the magma chamber?

a. lava flow

b. parasitic cone

c. flank

-->  d. conduit

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What connects the magma chamber to the outside crater?

a. magma

-->  b. vent

c. Lava

d. crust

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From the diagram, what connects the magma chamber to the crater?

a. magma

b. lava

-->  c. vent

d. ash

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What happens if the vent is removed?

a. The crater becomes hotter.

b. The magma chamber cools off.

-->  c. The magma cannot reach the surface.

d. Lava output doubles.

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What makes up the shape of the volcano?

a. the ash and crater

b. the ash and crust

c. the fumarole and lava

-->  d. The ash and cooled lava

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How many parts of the volcano are described in the diagram?

-->  a. 8

b. 7

c. 9

d. 6

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What is lava stored underneath?

a. Cone

b. Vent

c. Ash

-->  d. The crust

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What lies between the layers of ash?

-->  a. lava

b. cone

c. fumarole

d. vent

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Where does the lava in a volcano originate?

-->  a. magma chamber

b. main vent

c. crater

d. crust

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Where's the magma chamber located?

-->  a. Under the Earth's crust and mantle

b. Inside the volcano

c. Between the volcano's layers

d. Underground

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From the diagram, what connects the magma chamber to the crater?

a. mantle

b. crust

-->  c. main vent

d. lava

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What separates the magma chamber from the crust?

a. main vent

-->  b. mantle

c. lava

d. crater

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How many craters in shown in the diagram?

a. 3

b. 4

-->  c. 1

d. 2

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How many parts of a volcano are shown in the image?

a. 5

-->  b. 6

c. 7

d. 8

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Where does most of the magma pass through during a volcanic eruption?

a. Side vent

-->  b. Main vent

c. Crust

d. Mantle

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What connects the crater to the magma chamber?

-->  a. vent

b. secondary vent

c. lava flow

d. layers of ashes and lava

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What does lava come out of?

a. Rocks

b. Magma

-->  c. Crater

d. Chamber

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Where does lava come from?

a. Vent

b. Secondary Vent

c. Crater

-->  d. Magma Chamber

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How many labels are shown on this diagram?

a. 7

b. 5

c. 3

-->  d. 8

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Which part of a volcano is the closest to the Earth's nucleus?

a. Tephra

b. Central Vent

c. Crater

-->  d. Magma Chamber

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What is the crack through which magma flows through called?

a. Tephra

-->  b. Central Vent

c. Crater

d. Strata

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From the diagram, what connects the magma chamber to the crater?

-->  a. central vent

b. magma

c. tephra

d. strata

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In a volcano, what does the magma travel through to get to the crater?

a. Crust

b. Strata

c. Tephra

-->  d. Central vent

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This was created during the volcano's last eruption.

a. Ash

b. Magma

-->  c. Crater

d. Volcanic bombs

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During an eruption all lava is evacuated from where?

a. secondary cones

-->  b. magma chamber

c. main vent

d. crater

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What comes out of the top of a volcano?

a. Crater

b. Secondary cones

c. Secondary Vent

-->  d. Volcanic bombs

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Where is magma stored before a volcano erupts?

a. Secondary cone

-->  b. Magma chamber

c. Crater

d. Main vent

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From the diagram, how many kind of vents are there?

a. 4

b. 3

-->  c. 2

d. 1

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How many secondary vents does the volcano have?

a. 4

b. 3

-->  c. 2

d. 1

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What does a volcano pollute the atmosphere with?

-->  a. Ash and gas.

b. Main vent

c. Crater

d. Secondary cone

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What connects the crater to the magma chamber?

a. lava flow

b. laccolith

-->  c. vent

d. secondary cone

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What by-products are formed during volcano eruption?

a. Crater

b. Dyke

c. Vent

-->  d. Steam, gas and ash cloud

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What connects the magma chamber to the crater?

-->  a. vent

b. layers of ash and pyroclastic material

c. dyke

d. sill

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Which label shows the vent?

-->  a. 3

b. 14

c. 13

d. 10

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On the diagram, which number is pointing to the magma chamber?

a. 11

b. 10

-->  c. 1

d. 3

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Identify which part of the volcano is a flank.

a. 10

b. 11

c. 5

-->  d. 8

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What do you call the connection between 1 and 10?

a. lava

b. bedrock

c. ash layer

-->  d. pipe

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Where is the magma chamber?

-->  a. 1

b. 2

c. 3

d. 10

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When a volcano erupts, the magma from (1) will flow to which parts of the volcano to reach the surface?

a. (2) and (4)

-->  b. (3) and (10)

c. (8) and (15)

d. (7) and (9)

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It is the large underground pool of liquid rock found beneath the surface of the Earth

a. arial bombs

-->  b. magma chamber

c. lava

d. fissure flows

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Which of the following is filled with super-hot magma?

a. Flank eruption

b. Aerial bombs

-->  c. Magma chamber

d. Crater

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What is a roughly circular depression in the ground caused by volcanic activity?

-->  a. Crater

b. Lava

c. Sill

d. Bombs

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Another word for the vent of a volcano is what?

a. fissure

b. sill

c. lava

-->  d. crater

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Which part of the volcano is a large underground pool of molten rock sitting underneath the Earth's crust?

a. Conduit

b. Crater

-->  c. Magma chamber

d. Dome

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What connects the crater to the magma chamber?

a. aerial bombs

b. dome

-->  c. conduit

d. sill

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Which type of volcano is show in the diagram below?

a. Cinder cone

b. Caldera

-->  c. Composite volcano

d. Shield volcano

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From the diagram, what connects the magma chamber to the crater?

a. side vent

b. parasitic cone

c. sill

-->  d. main vent

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What is the top of a volcano called?

a. lava

-->  b. Crater

c. main vent

d. gas

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If there is no vent, what happens?

-->  a. The magma cannot reach the surface.

b. The rock layers melt all the way to the surface.

c. The ground gets hot.

d. The lava flow increases.

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What causes the laccolith to be dome-shaped?

-->  a. Pressure from the magma.

b. The earth's gravity.

c. The number of lava layers.

d. The age of the volcano.

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How many parts of a volcano eruption a population is able to see when it's happening?

a. 4

b. 7

c. 6

-->  d. 8

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Identify the part of the volcano that is a reservoir of magma in the Earth's crust.

-->  a. 11

b. 9

c. 10

d. 12

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What's located on point 11?

a. Mantel

b. Cater

-->  c. Magma Chamber

d. Volcano layer

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How many parts are in the diagram below?

a. 10

b. 9

-->  c. 12

d. 11

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If you remove the part corresponded to by the number 10, what happens?

a. Lava flow doubles.

b. The ground heats up greatly.

-->  c. The magma cannot reach the surface.

d. Volcanic bombs increase in size.

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It is the large underground pool of liquid rock found beneath the surface of the Earth

a. crater

-->  b. magma chamber

c. secondary vent

d. main vent

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Where does the lava from a volcano originate?

-->  a. magma chamber

b. main vent

c. crater

d. secondary vent

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Where does the volcano store magma?

a. Main vent

-->  b. Magma chamber

c. Secondary vent

d. Crater

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How much magma chamber can be seen in the illustration below?

a. 3

b. 2

c. 4

-->  d. 1

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Where is the eruption formed?

a. Chamber

-->  b. Crater

c. Secondary vent

d. Main vent

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What connects the vent to the magma?

a. lava dome

b. lava flow

c. eruption column

-->  d. conduit

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What immediate natural disaster is caused by volcano eruption?

-->  a. Landslide

b. Flood

c. Earthquake

d. Tsunami

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How many eruption column can be seen in this illustration?

a. 3

-->  b. 1

c. 4

d. 2

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Identify magma

a. A

-->  b. N

c. H

d. U

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What is thrown into the air during the eruption?

-->  a. TEPHRA

b. ROCK

c. MAGMA

d. SAND

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Identify the dike

a. V

b. R

c. E

-->  d. H