theory of plate tectonics

hotspots in the oceans

A chain of volcanoes forms as an oceanic plate moves over a hot spot. This is how it happens. A volcano forms over the hotspot. Since the plate is moving, the volcano moves off of the hotspot. When the hotspot erupts again, a new volcano forms over it. This volcano is in line with the first. Over time, there is a line of volcanoes. The youngest is directly above the hot spot. The oldest is the furthest away (Figure 6.27). The Hawaii-Emperor chain of volcanoes formed over the Hawaiian Hotspot. The Hawaiian Islands formed most

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the supercontinent cycle

Scientists think that Pangaea was not the first supercontinent. There were others before it. The continents are now moving together. This is because of subduction around the Pacific Ocean. Eventually, the Pacific will disappear and a new supercontinent will form. This wont be for hundreds of millions of years. The creation and breakup of a supercontinent takes place about every 500 million years.

mountain building

Continent-continent convergence creates some of the worlds largest mountains ranges. The Himalayas (Figure are the remnants of a larger mountain range. This range formed from continent-continent collisions in the time of Pangaea.

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passive plate margins

Mountain ranges also line the eastern edge of North America. But there are no active volcanoes or earthquakes. Where did those mountains come from? These mountains formed at a convergent plate boundary when Pangaea came together. About 200 million years ago these mountains were similar to the Himalayas today (Figure 6.26)! There were also earthquakes.

intraplate activity

Most geological activity takes place at plate boundaries. But some activity does not. Much of this intraplate activity is found at hot spots. Hotspot volcanoes form as plumes of hot magma rise from deep in the mantle.

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transform plate boundaries

Two plates may slide past each other in opposite directions. This is called a transform plate boundary. These plate boundaries experience massive earthquakes. The worlds best known transform fault is the San Andreas Fault in California (Figure 6.25). At this fault, the Pacific and North American plates grind past each other. Transform plate boundaries are most common as offsets along mid-ocean ridges. Transform plate boundaries are different from the other two types. At divergent plate boundaries, new oceanic crust is formed. At convergent boundaries, old oceanic crust is destroyed. But at transform plate boundaries, crust is not created or destroyed.

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hotspots beneath continents

Hot spots are also found under the continental crust. Since it is more difficult for magma to make it through the thick crust, they are much less common. One exception is the Yellowstone hotspot (Figure 6.28). This hotspot is very active. In the past, the hotspot produced enormous volcanic eruptions. Now its activity is best seen in the regions famous geysers.

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oceanocean convergence

Two oceanic plates may collide. In this case, the older plate is denser. This plate subducts beneath the younger plate. As the subducting plate is pushed deeper into the mantle, it melts. The magma this creates rises and erupts. This forms a line of volcanoes, known as an island arc (Figure 6.21). Japan, Indonesia, the Philippine Islands, and the Aleutian Islands of Alaska are examples of island arcs (Figure 6.22).

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continentcontinent convergence

Continental lithosphere is low in density and very thick. Continental lithosphere cannot subduct. So when two continental plates collide, they just smash together, just like if you put your hands on two sides of a sheet of paper and bring your hands together. The material has nowhere to go but up (Figure 6.23)! Earthquakes and metamorphic rocks result from the tremendous forces of the collision. But the crust is too thick for magma to get through, so there are no volcanoes.

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convergent plate boundaries

A convergent plate boundary forms where two plates collide. That collision can happen between a continent and oceanic crust, between two oceanic plates, or between two continents. Oceanic crust is always destroyed in these collisions.

oceancontinent convergence

Oceanic crust may collide with a continent. The oceanic plate is denser, so it undergoes subduction. This means that the oceanic plate sinks beneath the continent. This occurs at an ocean trench (Figure 6.19). Subduction zones are where subduction takes place. As you would expect, where plates collide there are lots of intense earthquakes and volcanic eruptions. The subducting oceanic plate melts as it reenters the mantle. The magma rises and erupts. This creates a volcanic mountain range near the coast of the continent. This range is called a volcanic arc. The Andes Mountains, along the western edge of South America, are a volcanic arc (Figure 6.20).

earths changing surface

Knowing where plate boundaries are helps explain the locations of landforms and types of geologic activity. The activity can be current or old.

active plate margins

Western North America has volcanoes and earthquakes. Mountains line the region. California, with its volcanoes and earthquakes, is an important part of the Pacific Ring of Fire. This is the boundary between the North American and Pacific Plates.

continental rifting

A divergent plate boundary can also occur within a continent. This is called continental rifting (Figure 6.18). Magma rises beneath the continent. The crust thins, breaks, and then splits apart. This first produces a rift valley. The East African Rift is a rift valley. Eastern Africa is splitting away from the African continent. Eventually, as the continental crust breaks apart, oceanic crust will form. This is how the Atlantic Ocean formed when Pangaea broke up.

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midocean ridges

Plates move apart at mid-ocean ridges. Lava rises upward, erupts, and cools. Later, more lava erupts and pushes the original seafloor outward. This is seafloor spreading. Seafloor spreading forms new oceanic crust. The rising magma causes earthquakes. Most mid-ocean ridges are located deep below the sea. The island of Iceland sits right on the Mid-Atlantic ridge (Figure 6.17).

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divergent plate boundaries

Plates move apart at divergent plate boundaries. This can occur in the oceans or on land.

plate boundaries

Plate boundaries are where two plates meet. Most geologic activity takes place at plate boundaries. This activity includes volcanoes, earthquakes, and mountain building. The activity occurs as plates interact. How can plates interact? Plates can move away from each other. They can move toward each other. Finally, they can slide past each other. These are the three types of plate boundaries: Divergent plate boundaries: the two plates move away from each other. Convergent plate boundaries: the two plates move towards each other. Transform plate boundaries: the two plates slip past each other. The features that form at a plate boundary are determined by the direction of plate motion and by the type of crust at the boundary.

how plates move

Convection within the Earths mantle causes the plates to move. Mantle material is heated above the core. The hot mantle rises up towards the surface (Figure 6.16). As the mantle rises it cools. At the surface the material moves horizontally away from a mid-ocean ridge crest. The material continues to cool. It sinks back down into the mantle at a deep sea trench. The material sinks back down to the core. It moves horizontally again, completing a convection cell.

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earthquakes and plate boundaries

Earthquakes are used to identify plate boundaries (Figure 6.14). When earthquake locations are put on a map, they outline the plates. The movements of the plates are called plate tectonics. The lithosphere is divided into a dozen major and several minor plates. Each plate is named for the continent or ocean basin it contains. Some plates are made of all oceanic lithosphere. A few are all continental lithosphere. But

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earthquake locations

The scientists realized that the earthquakes were most common in certain areas. In the oceans, they were found along mid-ocean ridges and deep sea trenches. Earthquakes and volcanoes were common all around the Pacific Ocean. They named this region the Pacific Ring of Fire (Figure 6.13). Earthquakes are also common in the worlds highest mountains, the Himalaya Mountains of Asia. The Mediterranean Sea also has many earthquakes.

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earths tectonic plates

The Cold War helped scientists to learn more about our planet. They set up seismograph networks during the 1950s and early 1960s. The purpose was to see if other nations were testing atomic bombs. Of course, at the same time, the seismographs were recording earthquakes.

instructional diagrams

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The diagram below is an example of continent-continent convergence. This means that two tectonic plates are colliding into one another. This creates mountain ranges like the one you see in the middle of the diagram. The geological layers shown in this diagram are continental crust at the top, then lithosphere under it, and then the asthenosphere deeper than that. Also, the diagram shows ancient oceanic crust. This crust has already been subducted under the convergence zone. There are other types of convergence than the one listed in the diagram. There are actually three types total: oceanic-oceanic convergence, oceanic-continental convergence, and continental-continental convergence.

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The world is made up of tectonic plates. We can understand and learn a great many things about the Earth from studying tectonic plates and their movements. Plate tectonics helps us to understand where and why mountains form. Using the theory, we know where new ocean floor will be created and where it will be destroyed. We know why earthquakes and volcanic eruptions happen where they do. We even can search for mineral resources using information about past plate motions. Plates interact at three levels of boundaries convergent, divergent and transform boundaries, this is where most of the Earths geologic activity takes place. The tectonic plates movements are responsible for most of the geographical features we see around the world.

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The diagram below shows the types of plate margin. Image result for types of plate boundaries There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform. A divergent boundary occurs when two tectonic plates move away from each other. When two plates come together, it is known as a convergent boundary. Two plates sliding past each other forms a transform plate boundary.

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The Pacific Plate is the largest tectonic plate. Take a look at the borders of the Pacific Plate, which are dotted by trenches. The Ring of Fire is located in the basin of the Pacific Ocean. Most earthquakes and volcanic eruptions occur along the Ring of Fire, because it is the location of most of earth's subduction zones. Look at where all the major earthquakes have occurred within the last fifty years. Only one significant fault line has not had a major earthquake in that time span: The Juan de Fuca. Earthquakes have occurred in the last fifty years in all thirteen trenches. Perhaps the next big earthquake will occur along America's Pacific Northwest.

questions

Plate tectonics helps to explain

a. how mountains form.

b. where new seafloor is created.

c. why earthquakes occur where they do.

-->  d. all of the above

Earths plates are made of slabs of

a. crust

b. upper mantle

-->  c. crust and upper mantle

d. asthenosphere

The Pacific Ring of Fire is a ring around the Pacific ocean where

a. volcanoes are common.

b. tectonic plates interact.

c. many hot spots occur.

-->  d. two of the above

The outlines of the plates are located by mapping

-->  a. earthquake epicenters

b. continental margins

c. the locations of earthquake faults

d. mid-ocean ridges

Plates move over Earths surface at a rate of

a. 100 kilometers per year.

b. a few kilometers per year.

-->  c. a few centimeters per year.

d. a couple of millimeters per year.

If a divergent plate boundary is found within a continent,

a. a line of volcanoes forms

b. a subduction zone forms

-->  c. the continent rifts apart

d. none of these.

An island arc forms when

a. two oceanic plates diverge

b. a continental plate sub ducts beneath an oceanic plate

c. an oceanic plate sub ducts beneath a continental plate

-->  d. an oceanic plate sub ducts beneath an oceanic plate

Plates move over Earths surface because of

a. conduction within the crust.

b. subduction in the outer core.

c. radiation from the inner core.

-->  d. convection within the mantle.

Magma from the mantle rises up through Earths crust at

a. deep-sea trenches.

b. mid-ocean ridges.

c. hot spots.

-->  d. all of the above

Plate tectonics theory says that

a. Earths geography has been the same for all geologic time

-->  b. Earths geography is continually changing

c. all geological activity happens at plate boundaries

d. continents drift but scientists do not yet know why.

The edge of a plate sinks into the mantle

a. where two plates diverge.

-->  b. at a subduction zone.

c. at a transform boundary.

d. none of the above

Continental plates do not subduct because they

-->  a. are very thick and low in density.

b. do not collide with other plates.

c. have only intraplate activity.

d. two of the above

All volcanoes and earthquakes take place at plate boundaries.

a. true

-->  b. false

At transform plate boundaries, two plates move toward each other.

a. true

-->  b. false

All earthquakes at transform plate boundaries are fairly small.

a. true

-->  b. false

Seafloor spreading is what makes the continents move.

-->  a. true

b. false

The youngest volcano in Hawaii is below sea level.

-->  a. true

b. false

The locations of earthquakes have been used to identify plate boundaries.

-->  a. true

b. false

The movement of Earths plates is called plate tectonics.

-->  a. true

b. false

The lithosphere is divided into just three major plates.

a. true

-->  b. false

Most geologic activity takes place far from plate boundaries.

a. true

-->  b. false

Mid-ocean ridges occur at convergent plate boundaries.

a. true

-->  b. false

Many volcanoes occur along subduction zones.

-->  a. true

b. false

The tallest mountains in the world formed at a transform plate boundary.

a. true

-->  b. false

Geologic features called faults occur at divergent plate boundaries.

a. true

-->  b. false

Scientists think that Pangaea was the first supercontinent.

a. true

-->  b. false

The Aleutian Islands formed at a plate boundary.

-->  a. true

b. false

where two plates slide past each other in opposite directions

a. tectonic plate

b. divergent plate boundary

c. continental rift

d. convergent plate boundary

e. hot spot

-->  f. transform plate boundary

g. subduction

fixed place under a plate where magma rises and may create volcanoes

a. tectonic plate

b. divergent plate boundary

c. continental rift

d. convergent plate boundary

-->  e. hot spot

f. transform plate boundary

g. subduction

where two plates move away from each other

a. tectonic plate

-->  b. divergent plate boundary

c. continental rift

d. convergent plate boundary

e. hot spot

f. transform plate boundary

g. subduction

process in which an oceanic plate sinks beneath another plate

a. tectonic plate

b. divergent plate boundary

c. continental rift

d. convergent plate boundary

e. hot spot

f. transform plate boundary

-->  g. subduction

slab of lithosphere that can move on the planets surface

-->  a. tectonic plate

b. divergent plate boundary

c. continental rift

d. convergent plate boundary

e. hot spot

f. transform plate boundary

g. subduction

where two plates move toward each other

a. tectonic plate

b. divergent plate boundary

c. continental rift

-->  d. convergent plate boundary

e. hot spot

f. transform plate boundary

g. subduction

divergent plate boundary that occurs within a continent

a. tectonic plate

b. divergent plate boundary

-->  c. continental rift

d. convergent plate boundary

e. hot spot

f. transform plate boundary

g. subduction

diagram questions

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What label represents the subduction zone?

a. D

-->  b. S

c. U

d. N

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Where is the oceanic crust?

a. H

-->  b. R

c. U

d. M

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What type of movement is seen near the boundary labeled 'F?

a. TRANSFORM

b. OCEAN CONVERGENCE

-->  c. DIVERGENT

d. CONVERGENT

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Which letter shows the epicenter?

a. T

b. P

-->  c. C

d. F

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Which label shows the earthquake center?

-->  a. U

b. N

c. V

d. C

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Which letter represents the Trench?

a. T

-->  b. C

c. N

d. U

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What does label C depict in this image of tectonic plates motion?

a. SHELF

b. MELTING MAGMA

c. CONVERGING PLATES

-->  d. TRENCH

question_image

By what letter/s is the lithosphere represented in the diagram?

a. V AND J

b. U AND T

-->  c. U

d. H AND P

question_image

What letter does the continental crust receive?

a. H

b. T

-->  c. V

d. U

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Which letter represents continental crust?

a. S

-->  b. J

c. T

d. P

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What type of terrain is above the layer labeled J?

a. CANYONS

-->  b. MOUNTAINS OR VOLCANOES

c. WATER

d. SKY

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Where are the plates located?

a. H

b. K

-->  c. IN V AND E GOING OPPOSITE DIRECTIONS

d. M

question_image

Magma originates in which of Earth's layers?

-->  a. Asthenosphere

b. Lithosphere

c. Oceanic Plate

d. Continental Crust

question_image

What happens under the mantle?

a. ascension of magma

-->  b. magma generation

c. trenching

d. asthenosphere

question_image

How many parts are there in this image?

a. 13

b. 14

c. 12

-->  d. 11

question_image

What happens when magma moves from the generation point to the ascension point?

a. Raises the Sea Level.

b. Splits the oceanic crust.

-->  c. Creates a Volcano.

d. Moves the mantle.

question_image

Which part of the earth is always destroyed at a convergent plate boundary?

a. Mountain range

-->  b. Oceanic crust

c. Continental crust

d. Lithosphere

question_image

What is between the Asthenosphere and the Oceanic crust?

a. Continental Crust

b. Trench

c. Overriding plate

-->  d. Subducting Plate

question_image

How many parts are there in the theory of plate tectonics?

a. 10

-->  b. 9

c. 12

d. 11

question_image

What is the layer above the asthenosphere?

-->  a. lithosphere

b. oceanic crust

c. volcanic arc

d. trench

question_image

What is the layer between Asthenosphere and Oceanic crust called?

a. Ocean

-->  b. Lithosphere

c. Trench

d. Volcano

question_image

As shown in the figure, volcanic arcs are formed when the oceanic plate undergoes subduction. What kind of collision best describes this scenario?

a. Ocean Ocean Convergence

b. Trench Building Convergence

-->  c. Ocean Continent Convergence

d. Continent Continent Convergence

question_image

What layer of Earth is located directly below the continental crust?

a. Oceanic crust

b. Asthenosphere

-->  c. Lithosphere

d. Volcano

question_image

How many layers are between the Volcanic arc and the Asthenosphere?

-->  a. 3

b. 5

c. 2

d. 4

question_image

Where is the magma chamber located?

a. volcano

b. continental crust

-->  c. lithosphere

d. asthenosphere

question_image

What is the rigid outer part of the earth, consisting of the crust and upper mantle?

a. Trench

b. Continental Crust

-->  c. Litosphere

d. Volcanoes

question_image

What is between the crust and the asthenosphere?

a. Convergence

b. Trench

c. Volcanoes

-->  d. Lithosphere

question_image

What lies exactly below the Lithosphere?

-->  a. Asthenosphere

b. Trench

c. Volcanoes

d. Oceanic crust

question_image

How many types of crust are shown in this diagram?

a. 3

b. 4

-->  c. 2

d. 1

question_image

In an oceanic-continental plate collision, would it be possible for the continental plate to undergo subduction?

-->  a. No

b. Not enough information to determine

c. Yes

d. It depends

question_image

The oceanic-continental convergence is formed from the convergence of which structures?

-->  a. Oceanic crust and continental crust

b. two oceanic crusts

c. two continental crusts

d. The ocean and the volcano

question_image

From the diagram, identify the state in which two plates collide.

a. divergent plate boundary

b. continental rifting

-->  c. convergent plate boundary

d. transform plate boundary

question_image

What does the Ocean Crust lead to?

-->  a. Subducting Plate

b. Trench

c. Accreted Terranes

d. Continental Sediments

question_image

What type of materials sink back into the mantle?

a. Hot material

b. Continental crust

c. Oceanic sediments

-->  d. Cold slab materials

question_image

How many types of plate boundary are there?

-->  a. 2

b. 4

c. 5

d. 3

question_image

What is a type of excavation or depression in the ground that is generally deeper than it is wide and narrow compared to its length?

-->  a. Trench

b. Crust

c. Atoll

d. Sediments

question_image

What happens when plates collide?

a. fire

b. convergence

c. trench

-->  d. earthquake

question_image

Where does the earthquake epicenter lie with respect to converging plates?

-->  a. Center

b. left

c. right

d. above

question_image

How many converging plates can you see in the picture?

a. 1

b. 3

c. 5

-->  d. 2

question_image

How many plates are converging in the picture?

a. 4

b. 3

c. 5

-->  d. 2

question_image

Which of these, when two of these move against each other, creates earthquakes?

a. melting magmas

-->  b. converging plates

c. islands

d. trenches

question_image

What does the brown part represent in the diagram?

-->  a. Lithosphere

b. Asthenosphere

c. Mantle

d. Crust

question_image

What is the rigid outer part of the earth, consisting of the crust and upper mantle?

a. Plate Figure

b. Continental Crust

c. Asthenosphere

-->  d. Lithosphere

question_image

What layer is below the Lithosphere?

a. Continental Crust

b. No more layer

c. Another Lithosphere

-->  d. Asthenosphere

question_image

What separates the continental crust to the asthenosphere?

a. atmosphere

b. soil

-->  c. lithosphere

d. air

question_image

How many types of layers are located below the continental crust?

-->  a. 2

b. 1

c. 3

d. 4

question_image

What is the layer above the asthenosphere?

a. ocean

-->  b. lithosphere

c. continental crust

d. trench

question_image

What is the layer directly above the asthenospheric mantle?

a. oceanic crust

b. continental crust

-->  c. lithospheric mantle

d. atmosphere

question_image

What is the layer after the oceanic crust called?

a. Asthenospheric mantle

b. Subduction zone

-->  c. Continental crust

d. Lithospheric mantle

question_image

What is the name of the top mantle layer?

a. Outer mantle

b. Core mantle

-->  c. Lithospheric mantle

d. Asthenospheric mantle

question_image

With the subduction process occurring in the diagram, how is one plate moving in relation to the other?

a. Upward

-->  b. Sideways and downward

c. Left and right

d. Sideways

question_image

How many layers of Earth are there in this diagram?

a. 5

b. 2

-->  c. 3

d. 4

question_image

How many layers of mantle does the Earth have in the diagram?

a. 3

b. 4

-->  c. 2

d. 6

question_image

What lies between the continental crust and the asthenospheric mantle?

a. Indo-Australian plate

b. Eurasian plate

c. Oceanic crust

-->  d. Lithospheric mantle

question_image

What is the layer above the asthenosphere?

a. ocean

b. midocean ridge

-->  c. lithosphere

d. continental crust

question_image

What are pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere?

a. Subduction Zone

b. Currents

-->  c. STectonic Plates

d. Asthenosphere

question_image

How many tectonic plates are there in the diagram?

-->  a. 3

b. 1

c. 4

d. 2

question_image

How many trenches are there in the diagram?

a. 3

b. 5

c. 2

-->  d. 1

question_image

What would happen if convection currents push the tectonic plates apart?

a. Subduction will take place.

b. The lithosphere will become a volcano.

c. The continental crust will disappear.

-->  d. Seafloor spreading will take place.

question_image

What letter demonstrates transform plate boundary?

a. A

-->  b. C

c. A and B

d. B

question_image

What is the direction of plates when they overlap?

-->  a. Towards each other

b. Downwards

c. Upwards

d. Away from each other

question_image

How many types of tectonic shifts are shown in the diagram?

a. 4

b. 1

-->  c. 3

d. 2

question_image

When two plates collide, what is formed?

a. Midocean Ridges

-->  b. Convergent plate boundary

c. Divergent Plate Boundaries

d. Continental Rifting

question_image

Which plate sits between the Pacific and the South American plates?

-->  a. Nazca plate

b. Eurasian plate

c. North American plate

d. Antarctic plate

question_image

How many plates are there?

-->  a. 17

b. 22

c. 25

d. 20

question_image

How many plates are there in the Americas?

a. 2

b. 5

-->  c. 3

d. 4

question_image

Which plate lies between the Pacific plate and South American plate?

-->  a. Nazca plate

b. Indian plate

c. Eurasian plate

d. North American plate

question_image

Which plates will move if the scotia plate moves?

-->  a. South american and antarctic

b. Pacific

c. Caribbean

d. Nazca and African

question_image

Which of the following plates is divergent?

a. Eurasian

b. Pacific

c. North American

-->  d. Arabian

question_image

What plate is positioned at the left of the African plate?

a. Scotia Plate

b. Arabian Plate

c. Indian Plate

-->  d. South American plate

question_image

Which Tectonic Plate surrounds North America?

a. Eurasian Plate

b. African Plate

-->  c. North American Plate

d. Pacific Plate

question_image

How many tectonic plates are there on Earth?

-->  a. 18

b. 16

c. 21

d. 13

question_image

How many tectonic plates are there?

a. 14

-->  b. 16

c. 12

d. 22

question_image

What is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South America?

a. Eurasian Plate

-->  b. Nazca Plate

c. Pacific Plate

d. North American Plate

question_image

How are tectonic plates names?

-->  a. Each plate is named for the continent or ocean basin it contains.

b. It is named based on the first country whre the earthquake is recorded

c. Based on the recommendations of UN

d. NASA determines the name

question_image

Which is the smallest plate called?

a. African Plate

-->  b. Juan de Fuca Plate

c. Australian Plate

d. Eurasian Plate

question_image

In the map. What is located below the Australian Plate?

a. Eurasian Plate

b. African Plate

c. Arabian Plate

-->  d. Antarctic Plate

question_image

Which plate covers Europe?

a. Indian plate

b. North America plate

c. Pacific plate

-->  d. Eurasian plate

question_image

How many plates border the Indian Plate?

-->  a. 4

b. 2

c. 3

d. 5

question_image

How many tectonic plates are shown in the image?

a. 18

b. 15

c. 17

-->  d. 16

question_image

What happens if the Pacific plate moves?

a. earthquake on Nazca area

b. earthquake on African area

c. earthquake on North America area

-->  d. earthquake on Pacific area

question_image

Which tectonic plate is under the least land surface?

a. Antarctic plate

-->  b. Pacific plate

c. African plate

d. Eurasian plate

question_image

What plate lies in between the Arabian Plate and the Australian Plate?

a. Pacific Plate

b. Nazca Plate

c. South American Plate

-->  d. Indian Plate

question_image

Which tectonic plate is USA found?

a. South American Plate

-->  b. North American Plate

c. Eurasian Plate

d. Pacific Plate

question_image

How many plates are there?

a. 18

-->  b. 19

c. 20

d. 4

question_image

What is the plate immediately to the left of South America called?

-->  a. Nazca Plate

b. Arabian Plate

c. Pacific Plate

d. Scotia Plate

question_image

Major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.

a. Indonesia

b. Japan

-->  c. Pacific Ring of Fire

d. China

question_image

What is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur?

a. Asia

b. Continents

c. Countries

-->  d. Pacific Ring of Fire

question_image

Which of the following continents have not any territory in the Pacific Ring of Fire?

a. North America

b. Asia

-->  c. Europe

d. South America

question_image

How many continents are in the Pacific ring of fire?

-->  a. 4

b. 3

c. 1

d. 2

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How many continents can you see in the diagram?

a. 4

b. 2

c. 5

-->  d. 3

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The Pacific Ring of Fire indicates which phenomenon is most common in these areas?

a. Volcanic eruptions

b. Typhoons

-->  c. Earthquakes

d. Sandstorms

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What would happen to these areas if there were no Pacific ring of fire?

a. They would have no access to fire.

-->  b. They would experience far less or no earthquakes and volcanic eruptions.

c. There would no longer be a yearly Ring of fire competition held in the Pacific region.

d. They would have far less or no wildfires.

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What does the red line represent?

a. Continents

b. Sea

c. Typhoon

-->  d. Major Tectonic Plate

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The South American plate and the Arabian plate are connected by which plate?

a. Eurasian Plate

-->  b. African Plate

c. Caribbean Plate

d. Indian Plate

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Which plate is between the Australian plate and the South American plate?

a. Eurasion plate

-->  b. African plate

c. Nazca plate

d. Philippine plate

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How many plates does Asia stand on?

-->  a. 5

b. 6

c. 4

d. 3

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How many plates is the earth divided into?

a. 11

-->  b. 12

c. 14

d. 13

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The Iceland hot spot is part of which major tectonic plate?

-->  a. Eurasian plate

b. Antarctic plate

c. Pacific plate

d. African plate

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What is an oceanic tectonic plate that lies beneath the Pacific Ocean?

a. Philippine Plate

b. South American Plate

-->  c. Pacific Plate

d. Juan De Fuca Plate

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Which is not included in the Ring of Fire?

a. Mexico

b. Japan

c. USA

-->  d. Greenland

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This is an area of the Pacific with a great deal of Earthquakes and Volcanoes.

a. Aleutian Trench

b. Izu Ogasawara Trench

-->  c. Ring of Fire

d. Middle America Trench

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What does the ring of fire represent?

a. No earthquake.

b. Fire around the area.

-->  c. High frequency of earthquakes.

d. Low frequency of earthquakes.

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Which country lies outside the Pacific Ring of Fire?

a. Indonesia

b. Philippine

c. Japan

-->  d. Australia

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How many continents in the earth?

a. 4

-->  b. 7

c. 1

d. 3

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In the image below how many trenches are there?

-->  a. 14

b. 8

c. 12

d. 10

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Which plate is the largest?

a. North American Plate

-->  b. Antarctic Plate

c. Pacific Plate

d. Eurasian Plate

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What is between the African and Indian plates?

a. cocos plate

-->  b. arabian plate

c. nazca plate

d. pacific plate

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Which tectonic plate is Germany found?

-->  a. Eurasian Plate

b. South American Plate

c. North American Plate

d. African Plate

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How many tectonic plates are in North and South America?

-->  a. 4

b. 5

c. 2

d. 1

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Germany is located in what plate?

a. Indian Plate

b. African Plate

-->  c. Eurasian Plate

d. Arabian Plate

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What is a tectonic plate containing the continent of Antarctica and extending outward under the surrounding oceans?

a. Eurasian Plate

-->  b. Antarctic Plate

c. Arabian Plate

d. Pacific Plate

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What is the trench that extends along Indonesia?

a. Izu Bonin trench

-->  b. Java trench

c. Tonga trench

d. Kurile trench

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In the map, what trench is the furthest away from the Ring of Fire?

-->  a. South Sandwich

b. Izu Bonin

c. Puerto Rico

d. Japan

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How many trenches are beneath the Equator?

a. 4

b. 7

c. 5

-->  d. 6

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How many trenches are there in the ring of fire?

a. 15

-->  b. 13

c. 12

d. 14

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What is the southern most point of the ring of fire?

-->  a. South sandwich trench

b. Japan trench

c. Aleutian trench

d. Kurile trench

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Which is not included in the Ring of Fire?

a. Mexico

b. USA

c. Japan

-->  d. Greenland

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Identify oceanic crust

a. U

-->  b. R

c. N

d. H

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How many layers are involved in the destructive plate figure?

a. 4

-->  b. 3

c. 2

d. 1