Plate Tectonics Answers

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Where is a divergent boundary most likely to be found?

A
in the ocean where plates move away from each other
B
on land where plates slip past each other
C
in the ocean where plates do not move
D
on land where plates move towards each other
2
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Many earthquakes occur near mid-ocean ridges but do not destroy or form new crust. Instead, plates slip past each other. Which kind of boundary is found at these earthquake locations?

A
transform boundary between two ocean plates
B
transform boundary between two continental plates
C
convergent boundary between two ocean plates
D
convergent boundary between two continental plates
3

In which two places do divergent boundaries occur?

A
land and oceans
B
oceans and volcanoes
C
volcanoes and lower mantle
D
lower mantle and land
4

Study the image about convection currents.

Question illustration
A
1
B
2
C
3
D
4
5

Study this image.

Question illustration
A
A volcano is forming.
B
Plates are converging.
C
A rift valley is forming.
D
A transform boundary is occurring.
6

During the process of mountain building, earthquakes sometimes occur along continental-continental convergent boundaries. Which statement best describes the motion of the plates along these boundaries that causes the earthquakes?

A
The plates push apart from each other with no subduction.
B
Subduction occurs with the less-dense plate sinking below the other plate.
C
Subduction occurs with the more-dense plate sinking below the other plate.
D
The plates smash together with no subduction.
7

Sometimes earthquakes occur at a boundary between the Indian and Eurasian Plates. The collisions of these two continental plates formed the Himalayan mountain range.Based on this information, which type of boundary exists between the Indian and Eurasian Plates?

A
continental-continental convergent
B
continental-continental divergent
C
oceanic-continental divergent
D
oceanic-continental convergent
8

Study the image of a plate boundary.

Question illustration
A
mountain
B
rift valley
C
earthquake
D
island chain
9

Which best explains why earthquakes sometimes occur in the same locations as mid-ocean ridges and rift valleys?

A
Plates bump as they slip past each other at convergent boundaries.
B
Plates get stuck as they move past each other at convergent boundaries.
C
Crust gets cracked and forms faults as plates collide along divergent plate boundaries.
D
Faults form because crust gets cracked when plates move apart along divergent plate boundaries.
10

Study the image.

Question illustration
A
does not occur in oceans
B
may form rift valleys
C
is a type of convergent boundary
D
is a region where earthquakes occur
11

Which statement describes transform boundaries?

A
Rift valleys are formed.
B
Mountains are created.
C
Faults form in the lithosphere.
D
Plates move toward each other.
12

Study the image of Earth’s interior.

Question illustration
A
how convection currents move in Earth’s interior
B
the location of heated material near Earth’s surface
C
where plates move as material cools in the outer core
D
why the densities of materials remain constant at different layers
13

Into which layer of the Earth do plate boundaries extend?

A
outer core
B
lithosphere
C
lower mantle
D
asthenosphere
14

Which region of Earth did John Tuzo Wilson believe was broken into plates?

A
lithosphere
B
outer core
C
lower mantle
D
asthenosphere
15

Which statement describes John Tuzo Wilson’s contribution to the theory of plate tectonics?

A
He proposed that plates carry parts of the seafloor.
B
He theorized that pieces of Earth move for a limited time.
C
He suggested that the asthenosphere is broken into segments.
D
He observed seafloor cracks similar to existing cracks in the continents.
16

Study this image.

Question illustration
A
mountains
B
rift valleys
C
volcanoes
D
island chains

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