Plate Tectonics Answers

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1
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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
2
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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
4

Study this map of the world.

Question illustration
A
Indo-Australian
B
African
C
Pacific
D
Eurasian
5

Study the image.

Question illustration
A
A convergent boundary is formed.
B
Two plates are forming a divergent boundary.
C
Continental plates are sliding past each other.
D
Several mid-ocean ridges are formed on Earth’s surface.
6

Study the map.Which plate borders the Philippine Plate?

Question illustration
A
African
B
Antarctic
C
Eurasian
D
North American
7

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.
8

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.
9

Which statement describes the process of subduction?

A
Convection currents cause two plates to move away from each other.
B
A plate slides beneath another plate due to convection currents and gravity.
C
Materials are heated and transferred within Earth’s interior by density.
D
Heat cycles in the mantle cause plates to constantly move.

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