Deck 3: Plate Tectonics

Question 1

Which of the following statements is true?

A)Earthquakes are more widespread than volcanoes or high mountains.
B)High mountains are more widespread than volcanoes or earthquakes.
C)Volcanoes are more widespread than earthquakes or high mountains.

Answer 1

A

Question 2

This figure depicts what type of boundary?

A)oceanic divergent boundary
B)ocean-ocean convergent boundary
C)ocean-continent convergent boundary
D)transform boundary
E)continental collision

Answer 2

C

Question 3

Which area(s)on this world map is likely to have volcanoes above sea level?

A)A
B)B
C)C
D)D

Answer 3

A

Question 4

On this map of the south Atlantic,what is the feature that makes a zigzag pattern on the seafloor?

A)island arc
B)linear island chain
C)subduction zone
D)mid-ocean ridge
E)none of these

Question 5

Which of the following features is associated with a deep oceanic trench?

A)mid-ocean ridge
B)linear island chain
C)seamount
D)island arc

Question 6

On this map,identify which letter is over an island arc.

A)A
B)B
C)C
D)D
E)feature is not labeled

Question 7

Which of the following features is present on the seafloor off the Pacific Northwest?

A)world's largest oceanic plateau
B)long,fairly straight fracture zone
C)world's largest linear island chain
D)island arc within oceanic plates

Question 8

On this map of the south Atlantic,why is the mid-ocean ridge in the center of the ocean?

A)Subduction is consuming seafloor beneath both adjacent continents.
B)Seafloor is added to both sides during seafloor spreading.
C)Subduction has occurred under one and then another of the adjacent continents.
D)Seafloor spreading has stopped in this area.

Question 9

On this map,identify which letter is over the Atlantic ocean.

A)A
B)B
C)C
D)D
E)feature is not labeled

Question 10

On this map,identify which letter is over a mid-ocean ridge.

A)A
B)B
C)C
D)D
E)feature is not labeled

Question 11

On this southern continent,which side has a plate boundary?

A)the left (west)side
B)the right (east)side
C)both sides
D)neither side

Question 12

Which area(s)on this world map is likely to have earthquakes?

A)A
B)B
C)C
D)D
E)A,B,and C only

Question 13

The main reason why the hypothesis of continental drift was not widely accepted was:

A)The hypothesis required that the entire Earth was once frozen.
B)The hypothesis required long,narrow land bridges that did not exist.
C)There was no mechanism to move continents through the oceanic crust.
D)All of these were reasons the hypothesis was not widely accepted.

Question 14

Which area(s)on this world map are likely to be near a plate boundary?

A)A and B
B)A and D
C)B and D
D)C and D
E)A,B,and C only

Question 15

In this figure of Japan,what do the offshore trenches indicate?

A)continental rifting
B)a rift in a mid-ocean ridge formed by seafloor spreading
C)a rift in a mid-ocean ridge formed by transform faulting
D)subduction of oceanic crust

Question 16

How did the Red Sea,shown between Arabia and Africa in this figure,form?

A)subduction of Arabia beneath Africa
B)subduction of Africa beneath Arabia
C)a continental collision
D)continental rifting followed by seafloor spreading
E)transform faulting followed by a continental collision

Question 17

What ideas brought a renewed interest to the idea of continental drift?

A)data that a submarine mountain occurred beneath the middle of the Atlantic Ocean
B)evidence that the entire Earth was once frozen
C)evidence that similar meteorites fall on different continents
D)evidence that a large meteorite caused extinction of the dinosaurs

Question 18

Why does the Tibetan Plateau,shown in this figure,have a high elevation?

A)transform faulting
B)seafloor spreading
C)continental rifting
D)continental collision
E)hot-spot activity

Question 19

Which data were used to develop the hypothesis of continental drift?

A)the shape of the continents
B)the distribution of fossils
C)the distribution of glacial deposits and directions of glacial scratch marks
D)all of these

Question 20

On this map,identify which letter is over the Pacific Ocean.

A)A
B)B
C)C
D)D
E)feature is not labeled

Question 21

What type of plate boundary is depicted in this figure?

A)oceanic divergent boundary
B)ocean-ocean convergent boundary
C)ocean-continent convergent boundary
D)continental collision boundary
E)transform boundary

Question 22

Which of the following contains a modern continental rift?

A)eastern North America
B)eastern Africa
C)eastern Europe
D)eastern Pacific Ocean
E)East Timor

Question 23

Which feature on this figure is formed by bending of the subducted plate?

A)A
B)B
C)C
D)D
E)E

Question 24

Which feature on this figure is formed by bending of the subducted plate?

A)A
B)B
C)C
D)D
E)E

Question 25

A divergent plate boundary is most likely associated with a(n):

A)oceanic trench
B)mountain belt or island arc
C)mid-ocean ridge
D)none of these

Question 26

Which of the following is associated with a mid-ocean ridge?

A)an island arc
B)magma produced as the mantles rise up
C)melting of the subducting plate
D)lower topography than surrounding seafloor
E)continental rift

Question 27

Which of the following is NOT happening in the area shown by this figure?

A)plates are moving apart
B)eruptions onto the seafloor
C)release of water by a descending plate
D)melting of rising mantle
E)faulting

Question 28

A convergent plate boundary is most likely associated with a(n):

A)oceanic trench
B)a linear chain of island
C)mid-ocean ridge
D)transform fault
E)none of these

Question 29

What type of plate boundary is depicted by the smaller arrows in the center of this figure?

A)divergent boundary
B)convergent boundary
C)transform boundary
D)hot spot
E)none of these

Question 30

What type of plate boundary is depicted in this figure?

A)continental rift
B)ocean-ocean convergent boundary
C)ocean-continent convergent boundary
D)divergent and transform boundaries
E)continental collision

Question 31

What occurs at mid-ocean ridges?

A)oceanic crust is destroyed
B)continental crust is destroyed
C)oceanic crust is created
D)continental crust is created
E)all crust is destroyed by magma

Question 32

An oceanic transform plate boundary is most likely associated with a(n):

A)oceanic trench
B)mountain belt or island arc
C)mid-ocean ridge
D)all of these

Question 33

Mid-ocean ridges are higher than surrounding oceanic crust primarily because:

A)two plates are colliding
B)the crust is thicker
C)the crust is stronger
D)transform faulting uplifts the rocks
E)the lithosphere is thinner and hotter

Question 34

What types of plate boundaries are shown in this figure?

A)divergent
B)convergent
C)transform
D)divergent and transform
E)convergent and divergent

Question 35

The main way new oceanic crust is created is by:

A)eruption of lavas and solidification of magmas at depth
B)sediment scraped off a subducting slab
C)continents that subside below sea level
D)continental rifting,before the continents separate
E)magmas along an ocean-continent convergent boundary

Question 36

What is being depicted by this figure?

A)continental collision
B)continent-continent convergence
C)early stages of seafloor spreading
D)early stages of subduction
E)a boundary that is mostly a transform fault

Question 37

Which way are the plates moving in this figure?

A)away from each other
B)directly toward each other
C)toward each other at an angle
D)horizontally sliding by one another
E)there is no way to tell

Question 38

The stages associated with continental rifting are,in order from earliest to latest:

A)narrow ocean basin,continental rift,uplift,wide ocean basin
B)narrow ocean basin,wide ocean basin,continental rift,uplift
C)uplift,wide ocean basin,narrow ocean basin,continental rift
D)wide ocean basin,narrow ocean basin,uplift,continental rift
E)uplift,continental rift,narrow ocean basin,wide ocean basin

Question 39

Which of the following best represents the sequence by which a continent splits apart?

A)seafloor spreading,then continental rifting,then uplift due to mantle upwelling
B)continental rifting,then seafloor spreading,then uplift due to mantle upwelling
C)uplift due to mantle upwelling,then continental rifting,then seafloor spreading
D)none of these

Question 40

Mid-ocean ridges form where two ocean plates:

A)collide
B)diverge
C)subduct
D)slide past each other
E)are destroyed

Question 41

When a plate boundary changes its orientation,it can change from:

A)a spreading center to a transform fault
B)a transform fault to a spreading center
C)a transform fault to a subduction zone
D)all of these
E)none of these

Question 42

On the accompanying figure,what type of feature is located in the area of number 3?

A)transform fault
B)mid-ocean ridge
C)linear island chain
D)fracture zone

Question 43

Which feature on this figure is formed by melting of mantle above the slab?

A)A
B)B
C)C
D)D
E)E

Question 44

On the accompanying figure,what type of feature is located in the area of number 2?

A)transform fault
B)mid-ocean ridge
C)linear island chain
D)fracture zone

Question 45

On the accompanying figure the plate boundary is located between:

A)A and B
B)B and C
C)C and D
D)D and E
E)there is not enough information to tell

Question 46

A continent has an oceanic trench offshore of its coast.Which of the following is probably NOT present along this side of the continent?

A)a mountain belt
B)earthquakes
C)volcanoes
D)melting along a mid-ocean ridge
E)subduction of an oceanic plate

Question 47

On the accompanying figure,what type of feature is located in the area of number 4?

A)transform fault
B)mid-ocean ridge
C)linear island chain
D)fracture zone

Question 48

Which feature on this figure is formed by melting of mantle above the slab?

A)A
B)B
C)C
D)D
E)E

Question 49

This figure shows plate boundaries south of Alaska.Which location is on a transform boundary?

A)1
B)2
C)3
D)4
E)2 and 3

Question 50

How fast do plates move relative to one another?

A)centimeters per year
B)meters per year
C)kilometers per year
D)one hundred kilometers per year

Question 51

On this map of the South Atlantic,which letter is on a transform fault?

A)A
B)B
C)C
D)D
E)E

Question 52

This figure shows plate boundaries south of Alaska.Which location is likely to contain volcanoes above a subduction zone?

A)1
B)2
C)3
D)4
E)2 and 3

Question 53

On this figure of a continental collision,which continent would have had subduction-related magmatism before the collision?

A)the continent on the left
B)the continent on the right
C)both continents
D)neither continent

Question 54

This diagram shows magnetic stripes on either side of the mid-ocean ridge.How many times did the magnetic field change polarity to form all of the stripes shown here?

A)twice
B)three times
C)five times
D)eleven times

Question 55

This figure shows plate boundaries south of Alaska.Which location is along a convergent boundary?

A)1
B)2
C)3
D)4
E)2 and 3

Question 56

On this map of the South Atlantic,which letter is on a site of seafloor spreading?

A)A
B)B
C)C
D)D
E)E

Question 57

On this map of the South Atlantic,which letter is on an oceanic fracture zone?

A)A
B)B
C)C
D)D
E)E

Question 58

The plate boundary on the this figure is located between:

A)A and B
B)B and C
C)C and D
D)D and E
E)there is not enough information to tell

Question 59

What causes magnetic stripes on the seafloor,such as those shown here?

A)Volcanic rocks in oceanic crust are covered by a variable thickness of sediment.
B)Some oceanic crust consists of volcanic rocks and some is composed of sediment.
C)Sometimes Earth's magnetic field points north and sometimes it points south.
D)Some volcanic rocks are formed in normal ways and others have pillows.

Question 60

A force that is important in driving plate tectonics is:

A)slab pull
B)ridge push
C)upwelling mantle,such as in hot spots
D)all of these

Question 61

On the accompanying figure,which letter is over the youngest oceanic crust?

A)A
B)B
C)C
D)D
E)E

Question 62

On the accompanying map,earthquakes are least likely at locations:

A)1,2,and 3
B)1 and 4
C)1 and 5
D)2,3,and 4
E)4 and 5

Question 63

What is associated with reversed magnetic polarity?

A)a compass needle would point south
B)the magnetic signal of seafloor formed with this polarity would be stronger compared to adjacent areas of the seafloor
C)there are much fewer intervals of reversed polarity than normal polarity
D)all of these

Question 64

On the accompanying figure,which letter is over the oldest oceanic crust?

A)A
B)B
C)C
D)D
E)E

Question 65

On the accompanying figure,which letter is over the youngest oceanic crust?

A)A
B)B
C)C
D)D
E)E

Question 66

Which location on this figure from the Investigation is located on a passive continental margin?

A)1
B)2
C)3
D)4
E)5

Question 67

On this map of South America,which features are NOT on a plate boundary?

A)A and B
B)B and C
C)C and D
D)D and E
E)all of the features are on a plate boundary

Question 68

The Earth's magnetic field is generated by:

A)salty water moving through the deep parts of the crust
B)convection currents in the asthenosphere
C)movement of iron and electrical currents within Earth's outer core
D)aligned magnetic minerals within Earth's inner core

Question 69

Which location on this figure from the Investigation is located on a divergent plate boundary?

A)1
B)2
C)3
D)4
E)5

Question 70

On this map of South America,which features are NOT on a plate boundary?

A)A and B
B)B and C
C)C and D
D)D and E
E)all of the features are on a plate boundary

Question 71

Which location on this figure from the Investigation is most likely to have volcanoes formed above a subduction zone?

A)1
B)2
C)3
D)4
E)5

Question 72

Where is subduction occurring on this figure of South America?

A)A
B)B
C)C
D)D
E)E

Question 73

Which location on this figure from the Investigation is located on a convergent plate boundary?

A)1
B)2
C)3
D)4
E)5

Question 74

This diagram shows magnetic stripes on either side of the mid-ocean ridge.How many different ages of stripes are represented in this diagram?

A)2
B)3
C)4
D)6
E)11

Question 75

On the accompanying figure,which letter is likely over oceanic crust that is similar in age to that beneath letter E?

A)A and B
B)B
C)C
D)D

Question 76

What are some uses of magnetic reversals?

A)matching the patterns of reversals in a rock sequence to the magnetic timescale
B)studying magnetic stripes on the seafloor
C)calculating rates of seafloor spreading
D)all of these

Question 77

Where is subduction occurring on this map of South America?

A)A
B)B
C)C
D)D
E)E

Question 78

If the area shown in this figure is 240 kilometers wide,and the oldest crest is 4 million years old,what was the approximate rate of seafloor spreading across this ridge?

A)0.24 kilometers per million years
B)2.4 kilometers per million years
C)60 kilometers per million years
D)240 kilometers per million years
E)960 kilometers per million years

Question 79

Which location on this figure from the Investigation is located on the abyssal plain?

A)1
B)2
C)3
D)4
E)5

Question 80

On the accompanying figure,which letter is over the oldest oceanic crust?

A)A
B)B
C)C
D)D
E)E