Answers2026-27 AL-Earth and Space SciencePlate Tectonics

Plate Tectonics Answers

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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.
2
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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
3

Many more earthquakes occur along the San Andreas Fault in California than in other parts of the United States. Scientists claim that these earthquakes are caused by activity along a transform plate boundary.Which evidence would best support this claim?

A
Subduction causes new crust to form.
B
Subduction causes old crust to be destroyed.
C
Plates slip past each other at the boundary.
D
Plates collide with each other at the boundary.
4

Study the image about convection currents.

Question illustration
A
1
B
2
C
3
D
4
5

Which statement explains the relationship between the density of a material and its movement in Earth’s interior?

A
Cooler materials move from Earth’s mantle to the lithosphere.
B
Cooler materials are highly dense, causing them to sink to the outer core.
C
Warmer materials sink to the mantle because their density slowly decreases.
D
Warmer materials have a high density, causing them to rise to Earth’s surface.
6

Use the images to answer the question.Where would you most likely find transform boundaries on an earthquake distribution map?

Question illustration
A
where earthquakes are shallow and weak
B
where earthquakes are shallow and powerful
C
where earthquakes are deep and weak
D
where earthquakes are deep and powerful
7

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

A
lithosphere
B
outer core
C
lower mantle
D
asthenosphere
8

Study the map.Which plate borders the Philippine Plate?

Question illustration
A
African
B
Antarctic
C
Eurasian
D
North American
9

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
10

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.
11

Occasionally earthquakes occur as a result of collisions along oceanic-continental convergent boundaries. Where do these earthquakes most likely occur?

A
on land but close to oceans
B
inland, far from the coast
C
in the middle of the oceans
D
anywhere there are mountains
12

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
13

Study the image of a plate boundary.

Question illustration
A
mountain
B
rift valley
C
earthquake
D
island chain
14

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.
15

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

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