AnswersEarth Systems APlate Tectonics

Plate Tectonics Answers

10 verified answers1 views
1
Free Preview

Study the image of a plate boundary.

Question illustration
A
mountain
B
rift valley
C
earthquake
D
island chain
2
Free Preview

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
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 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.
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.
7

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.
8

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.
9

Which describes the boundary where earthquake activity occurs along rift valleys?

A
divergent boundary in the ocean
B
divergent boundary on land
C
convergent boundary in the ocean
D
convergent boundary on land
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

Did you find these answers helpful?