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Pangea & Plate Tectonics Review Flashcards | StudBud
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Pangea & Plate Tectonics Review
Pangea & Plate Tectonics Review
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Theory of Continental Drift Seafloor Spreading Theory of Plate Tectonics
Flashcards
18 cards
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Questions
18
Answers
1
Magnetic stripes on the seafloor show that...
earthquakes are common in the ocean
crust is destroyed at ridges
Earth's magnetic field has changed
2
In divergent plate boundary,
two continental plates collide.
two plates separate.
two plates slide past one another.
3
What causes tectonic plates to move?
earthquakes in the crust
convection in the mantle
magnetism on the seafloor
4
What is Pangaea?
a supercontinent made of the present-day continents
a fern that lives close to the equator
a large ice sheet
5
A subduction zone is located at a(n) ___________________ plate boundary.
transform
divergent
convergent
6
Mountains like the Himalayas in southern Asia form because these plate boundaries collide...
Divergent Plate Boundary
Transform Plate Boundary
Convergent Plate Boundary
7
The mountain ranges in the middle of the oceans are called...
Ridge Push
Mid-ocean ridges
Plains
8
What plate boundaries cause continents to pull apart and form rift valleys?
Convergent Plate Boundary
Divergent Plate Boundary
Transform Plate Boundary
9
Wegener's hypothesis of a supercontinent was supported by...
earthquake date
rock, fossils, and climate data
convection currents in the mantle
seafloor magnetism
10
Seafloor spreading is a process that...
destroys oceanic crust
causes continents to plow through the seafloor
occurs at the mid-ocean ridges
11
What happens at a transform plate boundary?
Plates slide past each other
Plates move away from each other
Plates move toward each other
12
The San Andreas Fault in California is an example of this type of plate boundary...
Convergent Plate Boundary
Transform Plate Boundary
Divergent Plate Boundary
13
The three main layers of Earth are the crust, the mantle, and the core.
TRUE
FALSE
14
What evidence suggests that continents were once joined?
the puzzle-like fit of coastlines
topography of the seafloor
convergent plate boundaries
15
A landform that is created at a convergent plate boundary (when the densities of both plates is equal) is called a(n)
mountain
rift valley
deep-ocean trench
16
What are tectonic plates?
slabs of oceanic crust
slabs of continental crust
slabs of crust and upper mantle
17
How does seafloor spreading support continental drift theory?
It suggests that continents are static parts of Earths crust
It suggests continents move with the ocean floor
It suggests that continents plow through the ocean floor
18
The theory of plate tectonics provides an explanation for why ___________ and ________ occur.
earthquakes and mountains
earthquakes and milkshakes
earthquakes and volcanoes
