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Plate Tectonics

Total questions: 135

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
The type of plate boundary where two plates come together is a .....
a)
Convergent Boundary
b)
Divergent Boundary
c)
Transform Boundary
d)
Plate Boundary
2.
Which of the following causes Earth's tectonic plates to move?
a)
Energy from the Sun
b)
Magnetic Pole Reversal
c)
Convection currents in the mantle
d)
Faults in Mountain Ranges
3.
What type of plate boundary is this?
a)
Plate
b)
Divergent
c)
Convergent
d)
Transform
4.
What type of event will occur at this boundary?
a)
Earthquake
b)
Volcano Eruption
c)
Tornado
d)
Mountain Building
5.
A divergent boundary occurs when plates ....
a)
Pull apart
b)
Come together
c)
Slide past each other
d)
subducting
6.
Which of the following is the name of the ancient supercontinent formed 28 Million Years ago.
a)
Pangea
b)
Gondwanda
c)
Laurasia
d)
Neverland
7.
Which of the following is NOT evidence to support the theory of plate tectonics?
a)
Fossils
b)
Mountains
c)
Glaciers
d)
Sand Erosion
8.
What type of plate boundary is this?
a)
Transform
b)
Convergent
c)
Divergent
d)
Plate
9.
The theory that says Earth's continents once made up an ancient supercontinent, and have been drifting apart ever since, is called the theory of...
a)
Pangea
b)
Plate Tectonics
c)
Natural Selection
d)
Gravity
10.
Oceanic Trenches are formed by _______ plate boundaries
a)
Convergent
b)
Transform
c)
Plate
d)
Divergent
11.
A fault is formed by the movement of a __________ plate boundary
a)
Transform
b)
Convergent
c)
Divergent
12.
Islands can from from magma which is pushed up at a __________ plate boundary
a)
Divergent
b)
Convergent
c)
Transform
13.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
14.
How is it possible for new crust to be formed without increasing the surface area of the Earth?
a)
Crust is destroyed at the same time it is created
b)
New crust is underwater where it sinks
c)
New crust breaks more easily than old crust
15.
Mountains are created when....
a)
Two continental plates collide
b)
Two oceanic plates pull apart
c)
An Oceanic plate subducts under a Continental Plate
d)
Two continental plates pull apart
16.
A break in Earth's crust along which rocks move is called a ________.
a)
plate
b)
rift
c)
fault
d)
breach
17.
What is the name of the single landmass that began to break apart 200 million years ago?
a)
Panthalassa
b)
Laurasia
c)
Gondwanna
d)
Pangaea
18.
The process by which molten material adds new oceanic crust to the ocean floor is called ___________.
a)
Divergent boundary
b)
Sea-floor spreading
c)
Convergent boundary
d)
Renovating 
19.
What is an undersea mountain chain where new ocean floor is produced?
a)
Rift valley
b)
Deep-ocean trench
c)
Mid-ocean ridge
d)
Transform bounda
20.
What is the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary?
a)
Subduction
b)
Induction
c)
Abduction 
d)
Reduction
21.
___________ is the theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
a)
Seismic waves
b)
Convection current
c)
Divergent boundary
d)
Plate tectonics
22.

What type of event will occur at this boundary?

a)

Earthquake

b)

Volcano Eruption

c)

Tornado

d)

Mountain Building

23.

Mountains are created when....

a)

Two continental plates collide

b)

Two oceanic plates pull apart

c)

An Oceanic plate subducts under a Continental Plate

d)

Two continental plates pull apart

24.

Which of these events can ONLY happen on a DIVERGENT BOUNDARY?

a)

Rift Valley

b)

Mountain

c)

A peninsula

d)

An Insanely complex, long answer that you will click out of instinct.

25.

Rising magma that results from subduction may produce...

a)

fossil layers

b)

volcanic island arcs

c)

deep-sea sediment

d)

seafloor spreading

26.
The Andes Mountains are a volcanic mountain range located on the western coast of South America. The plate boundary located in this region is most likely an area of-
a)
subduction because the plates are colliding
b)
folded mountains because the plates are colliding
c)
mid-ocean ridges because the plates are pulling apart
d)
ocean-floor spreading because the plates are spreading apart
27.
What forms at a divergent boundary between two oceanic plates?
a)
rift valley
b)
mountain
c)
mid-ocean ridge
d)
trench
28.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
29.
It is steep on a topographic map where __________.
a)
lines are closest together
b)
a river flows into a lake
c)
contours bend
d)
contours are far apart
30.
If we were in a plane, Path B --> C is about the same distance as path E --> N. But, which path is the easier walk? 
a)
B --> C is the easier walk
b)
E --> N is the easier walk
c)
B --> C and E --> N are the same walking distance
31.

Which describes the process of new crust being created?

a)

During seafloor spreading, ocean plates move together forcing ridges of mountains to create new crust.

b)

During seafloor spreading, ocean plates move apart allowing for magma to well up and then move aside.

c)

During seafloor spreading, ocean plates scrape past one another creating friction and forcing magma up through the cracks.

d)

Volcanoes spill lava all over the ocean to create a new crust.

32.

Which statements are evidence of plate tectonic theory? (Check all that apply)

a)

Ocean currents

b)

Glacial Evidence

c)

Continents fit together like puzzle pieces

d)

Weather patterns

e)

Matching landforms

33.

Which statements are evidence of plate tectonic theory? Check what applies

a)

Geological Landforms (mountain chains)

b)

Tidal wave currents

c)

Seafloor Spreading

d)

Fossil Evidence

34.

Identify the boundary in the illustration.

a)

Convergent Boundary

b)

Divergent Boundary

c)

Transform Boundary

35.

Identify the boundary in the illustration.

a)

Convergent Boundary

b)

Divergent Boundary

c)

Transform Boundary

36.

Identify the boundary in the illustration.

a)

Convergent Boundary

b)

Divergent Boundary

c)

Transform Boundary

37.

Identify the boundary in the illustration.

a)

Convergent Boundary

b)

Divergent Boundary

c)

Transform Boundary

38.

Identify the boundary in the illustration.

a)

Convergent Boundary

b)

Divergent Boundary

c)

Transform Boundary

39.
a)

Convergent Boundary - Submarine

b)

Convergent Boundary - Subduction

c)

Divergent Boundary - Submarine

d)

Divergent Boundary - Subduction

40.

Kenya, a country on the African continent, recently saw the Great Rift Valley continue to tear through the countryside. What type of plate boundary would cause this crustal feature?

a)

Convergent Boundary

b)

Convergent Subduction Boundary

c)

Divergent Boundary

d)

Transform Boundary

41.

Iceland is in great distress over the bridge across the Álfagjá Rift Valley because it sits on two plate boundaries that are moving away from one another. What type of boundary could this bridge be sitting on?

a)

Convergent Boundary

b)

Convergent Subduction Boundary

c)

Divergent Boundary

d)

Transform Boundary

42.

The China Piqiang Fault is a transform fault. The bird's eye view below shows the approximation of where the fault line crosses the land. Which answer predicts the likely movement of the land along the fault line over thousands of years?

a)
b)
c)
d)
43.

A mid-ocean ridge separates the North American Plate and the Eurasian Plate through the country of Iceland. Which statement describes the relative motions of the North American and the Eurasian Plates?

a)

The North American and the Eurasian plates are both moving to the east.

b)

The North American and the Eurasian plates are both moving to the west.

c)

The North American plate is moving to the west, and the Eurasian plate is moving to the east.

d)

The North American plate is moving to the east, and the Eurasian plate is moving to the west.

44.

Identify the correct boundary for each letter in the illustration below.

a)

A. Convergent Boundary, B. Convergent Subduction Boundary

b)

A. Convergent Subduction Boundary, B. Divergent Boundary

c)

A. Divergent Boundary, B. Divergent Boundary

d)

A. Divergent Boundary, B. Convergent Subduction Boundary

45.

Subduction zones are best explained by ---

a)

two plates collide and fall below the lithosphere.

b)

an oceanic plate and a continental plate collide with both pushing upward.

c)

two continental plates push past each other.

d)

a continental plate and an oceanic plate collide with the denser oceanic plate moving downward into the mantle.

46.

A subduction boundary that is created with an oceanic plate and a continental plate will result in the formation of --

a)

a trench and/or volcano

b)

a rift valley and/or mountains

c)

a mid-ocean ridge and/or tidal waves

d)

a mountain and/or seafloor spreading

47.

The map shows the location of active volcanoes between the Pacific Ocean and the Bering Sea. What do these volcanoes indicate about plate tectonics in the region?

a)

The volcanoes form an island arc, indicating a convergent plate boundary.

b)

The volcanoes form a line, indicating a divergent plate boundary.

c)

Two plates are moving past each other, causing faulting and magma formation.

d)

Two plates are moving apart, creating new seafloor.

48.

The illustration below shows the movements of two tectonic plates. Where the two plates collide into one another, one plate often moves below the other plate. The rising magma that results from this plate movement will produce --

a)

fossil layers

b)

volcanic islands

c)

great rift valleys

d)

seafloor spreading

49.

Scientists found that the oldest crust material in continental plates is much older than the oldest material in ocean plates. What reasoning would best explain why the continental plate is older than the oceanic plate?

a)

Oceanic plates form rapidly.

b)

Earth’s oceans are younger than the continents.

c)

Oceanic plates are denser, therefore subducted under continental plates when they collide.

d)

Water gradually wears away oceanic plate material and deposits it on land masses.

50.

This illustration of tectonic plates was used to model a plate boundary by a group of kids in their geology class. Which event can be best demonstrated with this drawing?

a)

volcanic eruption

b)

gravitational forces

c)

building of a mountain

d)

earthquake

51.

Based on evidence from land features, fossils and climate, Wegener concluded that continents

a)

sink

b)

rise

c)

move

52.

All of the continents were joined together in a supercontinent that Wegener called

a)

Pangaea

b)

Gondwanaland

53.

In sea-floor spreading, new crust is added at a

a)

mid-ocean ridge

b)

magnetic stripe

54.

Subduction takes place at

a)

mid-ocean ridges

b)

deep-ocean trenches

55.

Which features form the longest mountain ranges on Earth?

a)

the mid-ocean ridges

b)

the deep-ocean trenches

c)

the Rockies

d)

the Andes

56.

Which process adds more crust to the ocean floor?

a)

suction

b)

sea-floor spreading

c)

subduction

d)

magnetic strip

57.

Where does subduction occur?

a)

along the middle of the ocean floors

b)

down the middle of the mountain ranges

c)

on continents

d)

at deep-ocean trenches

58.

Which process or processes change the size and shape of the oceans?

a)

subduction only

b)

sea-floor spreading only

c)

both subduction and sea-floor spreading

d)

both drilling for samples and subduction

59.

Which theory describes the motion of and force driving Earth's plates?

a)

first law of motion

b)

third law of motion

c)

continental drift

d)

plate tectonics

60.

What is the motion of Earth's plates like?

a)

fast and in stages

b)

slow and in stages

c)

fast and constant

d)

slow and constant

61.

The San Andreas fault is an example of which kind of boundary?

a)

transform

b)

divergent

c)

oceanic

d)

convergent

62.

Which feature forms at convergent boundaries?

a)

mountain range

b)

trench

c)

rift valley

d)

mid-ocean ridges

63.

An undersea mountain chain where new ocean floor is produced, in a divergent plate boundary is?

a)

deep-ocean trench

b)

sea-floor spreading

c)

mid-ocean ridge

64.

A valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle is?

a)

deep-ocean trenches

b)

mid-ocean ridges

c)

sea-floor spreading

d)

subduction

65.

Process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary is?

a)

mid-ocean ridge

b)

sea-floor spreading

c)

deep-ocean trenches

d)

subduction

66.

Boundary where two plates slip past each other, moving in opposite directions are?

a)

divergent

b)

transform

c)

convergent

67.

Boundary where two plates collide?

a)

convergent

b)

divergent

c)

transform

68.

Boundary where plates move away from each other are?

a)

convergent

b)

Divergent

c)

transform

69.

The geologist that came up with the Theory of Continental Drift is _______

a)

Albert Einstein

b)

Alfred Wegener

c)

Harry Hess

d)

Ben Franklin

70.

The Theory of Continental Drift states that

a)

Continents gradually move across Earth's surface over time.

b)

The plates move because of the convection currents.

c)

Earth's lithosphere is composed of a number of plates.

d)

A supercontinent that incorporates all landmasses on Earth.

71.

The Theory of Plate Tectonics states that

a)

A supercontinent composed of all the landmasses.

b)

The gradual movement of the continents over the surface.

c)

The Earth's lithosphere is composed of a number of plates.

d)

The plates collide and cause earthquakes.

72.

A supercontinent that is comprised of all landmasses

a)

Gondwana

b)

Laurasia

c)

North America

d)

Pangaea

73.

Why does Pangaea no longer exist?

a)

It still exists today.

b)

Continental Drift shifted the plates causing it to separate.

c)

Convection Currents shift the plates causing it to separate.

d)

Volcanic activity causes the continents to shift.

74.

Two or more tectonic plates that move towards one another is a

a)

Divergent Boundary

b)

Transform Boundary

c)

Subduction

d)

Convergent Boundary

75.

Two or more tectonic plates move away from each other is a

a)

Subduction

b)

Transform Boundary

c)

Divergent Boundary

d)

Convergent Boundary

76.

Two or more tectonic plates shift horizontally alongside each other is a

a)

Divergent Boundary

b)

Transform Boundary

c)

Convergent Boundary

d)

Subduction

77.

When one plate slips underneath another plate is called

a)

Subduction

b)

Transform Boundary

c)

Convergent Boundary

d)

Divergent Boundary

78.

The difference between oceanic and continental plates is

a)

oceanic plates are more dense and lower elevation.

b)

continental plates are more dense and lower elevation.

c)

oceanic plates are less dense and higher elevations.

d)

continental plates are less dense and lower elevation.

79.

An oceanic plate converges on a continental plate, which one subducts under the other?

a)

Continental Plate

b)

Oceanic Plate

80.

What evidence supports the theory of plate tectonics?

a)

Fossils found on different continents

b)

Locations of volcanoes and earthquakes

c)

Similarity in the coastlines of the continents

d)

All of the above

81.

Which reptile's fossils are found in southern Africa and South America?

a)

Tyrannosaurus Rex

b)

Mesosaurus

c)

Stegosaurus

d)

Brachiosaurus

82.

What drives the movement of Earth's lithospheric plates?

a)

Convection currents in the mantle

b)

Volcanic eruptions

c)

Tidal forces from the Moon

d)

Earth's rotation

83.

Which type of plate boundary is associated with the creation of new crust?

a)

Convergent

b)

Divergent

c)

Transform

d)

None of the above

84.

What geological features are associated with convergent plate boundaries?

a)

Volcanoes, mountains, and earthquakes

b)

Islands and deep ocean trenches

c)

Rift zones and mid-ocean ridges

d)

None of the above

85.

What is the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle?

a)

Subduction

b)

Convection

c)

Plate Tectonics

d)

Seafloor Spreading

86.

Which of the following is a direct evidence of plate tectonics?

a)

Presence of similar species in different continents

b)

Presence of mountains on the continents

c)

Earthquakes and volcanic activities along the plate boundaries

d)

Change in climate over millions of years

87.

What is the boundary called where two plates move apart?

a)

Convergent boundary

b)

Divergent boundary

c)

Transform boundary

d)

None of the above

88.

What geological features are associated with divergent plate boundaries?

a)

Volcanoes, mountains, and earthquakes

b)

Islands and deep ocean trenches

c)

Rift zones and mid-ocean ridges

d)

None of the above

89.

This type of plate boundary slides past one another and is known for causing earthquakes

a)

Subduction

b)

Convergent

c)

Divergent

d)

Transform

90.
What type of plate boundary is this?
a)
Plate
b)
Divergent
c)
Convergent
d)
Transform
91.
What type of event will occur at this boundary?
a)
Earthquake
b)
Volcano Eruption
c)
Tornado
d)
Mountain Building
92.
Which of the following causes Earth's tectonic plates to move?
a)
Energy from the Sun
b)
Magnetic Pole Reversal
c)
Convection currents in the mantle
d)
Faults in Mountain Ranges
93.
The type of plate boundary where two plates come together is a .....
a)
Convergent Boundary
b)
Divergent Boundary
c)
Transform Boundary
d)
Plate Boundary
94.
A divergent boundary occurs when plates ....
a)
Pull apart
b)
Come together
c)
Slide past each other
d)
subducting
95.
What type of plate boundary is this?
a)
Transform
b)
Convergent
c)
Divergent
d)
Plate
96.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
97.
How is it possible for new crust to be formed without increasing the surface area of the Earth?
a)
Crust is destroyed at the same time it is created
b)
New crust is underwater where it sinks
c)
New crust breaks more easily than old crust
98.
Mountains are created when....
a)
Two continental plates collide
b)
Two oceanic plates pull apart
c)
An Oceanic plate subducts under a Continental Plate
d)
Two continental plates pull apart
99.
What is this image...
a)
Revolving boundary
b)
San Andreas (Transform)
c)
Convergent
100.
The area where two tectonic plates meet.
a)
mantle
b)
focus
c)
plate boundary
d)
convection
101.
Most volcanoes and earthquakes occur...
a)
along the coast
b)
along tectonic plate boundaries
c)
in the Arctic
d)
in the ocean
102.
This landform can occur at a divergent plate boundary.
a)
ocean trench
b)
mid-ocean ridge
c)
tall mountains
d)
transform fault
103.
Which of these events can ONLY happen on a DIVERGENT BOUNDARY?
a)
Rift Valley
b)
Mountain
c)
A peninsula
d)
An Insanely complex, long answer that you will click out of instinct. 
104.
The Himalayas in Asia are an example of what type of plate boundary?
a)
divergent
b)
continent-to-continent convergent
c)
ocean-to-continent convergent
d)
transform
105.
The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by this boundary
a)
Divergent
b)
Convergent
c)
Reform
d)
Transform
106.
The average density of one of the continental crusts is 2.8 g/cm3 and the average density of one of the oceanic crusts is 3.2 g/cm3. If these two plates came together, what could be expected to happen? 
a)
  The two plates would push apart and form a rift zone. 
b)
The oceanic plate would rise up over the continental plate. 
c)
The oceanic plate would be pushed under the continental plate. 
d)
The two plates would meet head on and rise up to form mountains.
107.
Which of the following objects best represents the movement that occurs during sea-floor spreading?
a)
Elevator
b)
Conveyor belt
c)
Rollercoaster
d)
Hot air balloon
108.
What process is occurring at Z?
a)
Convection currents       
b)
 Subduction 
c)
Two plates moving apart
d)
New ocean floor forming
109.
Why does the ocean floor sink beneath the continent at Z?
a)
The ocean floor is less dense than the continent.
b)
The ocean floor is more dense than the continent.
c)
The ocean floor is moving faster than the continent.
d)
The ocean floor is moving slower than the continent.
110.
Why is an oceanic plate subducted by a continental plate?
a)
The oceanic plate is cooler
b)
The continental plate is thicker
c)
The oceanic plate is denser
d)
The continental plate is denser
111.
Which feature does not form at a subduction boundary?
a)
A trench
b)
A rift
c)
Volcanoes
d)
Mountains
112.
Name this boundary
a)
Convergent
b)
Divergent
c)
Transform
d)
Sergent
113.
Name the boundary
a)
divergent
b)
convergent
c)
transform
d)
sergent
114.
Name the boundary
a)
convergent
b)
transform
c)
divergent
d)
sergent
115.
Oceanic crust is.....
a)
Younger and less dense than continental crust
b)
Thinner, younger, and more dense than continental crust
c)
older, thicker, and less dense than continental crust
d)
Bigger and younger than continental crust
116.
What was the name given to all the continents when they were joined as one super continent?
a)
Supreme Continent
b)
Eurasia
c)
Plate tectonics
d)
Pangea
117.
Created by a divergent boundary
a)
rocky mountain
b)
Mariana's Trench
c)
mid-Atlantic ridge
d)
volano
118.
What type of boundary creates a new seafloor?
a)
convergent continental to continental
b)
convergent ocean to continental
c)
convergent ocean to ocean
d)
divergent 
119.
Which of the following is the softer moving area of the mantle that contains convection current?
a)
asthenosphere
b)
lithosphere
c)
outer core
d)
oceanic crust
120.
This area contains over 70 percent of volcanoes and 90 percent of earthquakes in the world.
a)
North American plate
b)
Ring of Fire
c)
Fiery rings
d)
African plate
121.
Which of the following did not support the Continental Drift Theory?
a)
Magnetic striping in the ocean floor
b)
identical fossils found in different continents
c)
Mountains that extend over continents
d)
Coastlines of continents such as South America and Africa fit like a puzzle
122.
Which layer of the earth is divided into our tectonic plates?
a)
lithosphere
b)
asthenosphere
c)
mesosphere
d)
outer core
123.
Which layer of the earth allows the tectonic plates to move?
a)
lithosphere
b)
asthenosphere
c)
mesosphere
d)
outer core
124.
What is it called when warmer material rises and cooler material sinks?  That constant circulation of heating and cooling is called
a)
subduction currents
b)
transform currents
c)
convection currents
d)
radiation currents
125.
When two tectonic plates collide, the ______________ plate slides under the other.
a)
denser
b)
hotter
c)
thicker
d)
longer
126.

Alfred Wegener noted that fossils from a particular type of reptile were found on both sides of the Atlantic Ocean. Which of the following would be the best explanation of how this occurred?

a)

The reptiles swam across the ocean

b)

The Atlantic Ocean did not exist in earlier times

c)

The reptiles walked across a giant land bridge that has weathered away

d)

The reptiles walked across an ice bridge located near the equator

127.

The map shows some of Earth’s plate tectonic boundaries.

Based on the map, volcanic activity would most likely be found at

a)

Location W

b)

Location X

c)

Location Y

d)

Location Z

128.

Scientists recently discovered that rocks collected from the Franklin Mountains in West Texas and rocks collected from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks were chemically and geologically the same and came from the same magma source. This discovery provides evidence of —

a)

coastal erosion

b)

plate tectonics

c)

ocean currents

d)

glacial melting

129.

Which type of tectonic plate movement results in the formation of mid-ocean ridges?

a)

Sliding past each other

b)

Pulling away from each other

c)

Pushing together and upwards

d)

One plate sliding under another

130.

The image shows a plate boundary. Arrows have been added to indicate the movement of the plates.

What plate boundary feature is also shown?

a)

A ridge formed by an inactive convergent boundary

b)

A valley forming at an active divergent boundary

c)

A fault forming at an active transform boundary

d)

A volcano formed by an active transform boundary

131.

The diagram shows a model of the movement of two tectonic plates. When the plates collide, one plate often moves below the other plate.

The rising magma that can result from this type of plate movement may produce —

a)

fossil layer

b)

volcanic islands

c)

deep-sea sediment

d)

seafloor spreading

132.

The map shows the location of four active volcanoes in the Caribbean Sea.

What do these volcanoes indicate about plate tectonics in the region?

a)

The volcanoes form an island arc, indicating a converging plate boundary.

b)

The volcanoes form a line, indicating a diverging plate boundary.

c)

Two plates are moving past each other, causing faulting and magma formation.

d)

Two plates are moving apart, creating new seafloor.

133.

The model shows two continental plates. The folded mountains in this model form at which type of plate boundary?

a)

Transform boundary

b)

Divergent boundary

c)

Subduction boundary

d)

Convergent boundary

134.

Students examine a map that shows the movement of the two tectonic plates.

Each student writes a description of the tectonic activity and why they think it is occurring. Which explanation best describes the impact of Newton’s Laws on the movement of these plates?

a)

The North American Plate is subducting underneath the Eurasian Plate because equal and opposite forces are acting on them.

b)

The forces acting on both plates cause them to diverge until they are acted upon by another force.

c)

The Eurasian Plate and the North American Plate are converging because the forces acting on them are balanced.

d)

Balanced forces are acting on the Eurasian Plate and the North American Plate causing them to diverge.

135.

Alfred Wegener's Theory of Continental Drift states that the continents were once joined together in a giant landmass that broke apart, and that the continents then drifted to their current locations. One piece of evidence supporting this theory is the shapes of the continents, which seem to fit together like pieces of a puzzle. The map shows evidence supporting Wegener's ideas. The shape of the eastern coast of South America appears to fit together with —

a)

eastern North America

b)

eastern Australia

c)

southern North America

d)

western Africa