Most tectonic plates have two kinds of crust, what are they?

oceanic crust & continental crust

Why do tectonic plates move?

Magma in the mantle pulls plates along as it heats and cools

Why do iron minerals on the ocean floor not face the same direction? (some face north, some face south)

flipping on Earth's magnetic field

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Tectonic Plate Quiz

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Questions 22

Answers

1
Layer under the crust
Inner Core
Mantle
Outer Core
None
2
What plate boundary is this?
None of the above
Transform
Convergent
Divergent
3
Sea floor spreading occurs at
transform boundaries
subduction zones
divergent boundaries
convergent boundaries
4
Most tectonic plates have two kinds of crust, what are they?
oceanic crust & continental crust
inner crust & outer crust
soft crust & hard crust
crust & mantle
5
Heat of the core is maintained due to
pressure
all of the above
radioactive decay
convection
6
Why do tectonic plates move?
Because the Earth rotates
The magnetic force of the Earth's core
Magma in the mantle pulls plates along as it heats and cools
The moon's tidal pull
7
What type of boundary is this?
Divergent
None of the above
Convergent
Transform
8
What plate movement causes transform faults?
Transform
Convergent
Divergent
Subduction
9
Seafloor spreading occurs at:
convergent boundaries
subduction zones
transform boundaries
divergent boundaries
10
Outer most layer of the Earth
Crust
Outer core
Inner core
Mantle
11
What plate movement causes mid-ocean ridges?
subduction
divergent
convergent
transform
12
What plate boundary is this?
Convergent
Divergent
Transform
None of the above
13
What plate movement causes mountain ranges?
transform
divergent
subduction
convergent
14
Convection is when cold magma rises?
True
False
15
Inner most layer of Earth
Outer Core
Inner core
Mantle
Crust
16
What do tectonic plates make up?
lithosphere
asthenosphere
outer core
crust
17
What happens along all plate boundaries?
Subduction
Earthquakes
Volcanos
Seafloor spreading
18
Why do iron minerals on the ocean floor not face the same direction? (some face north, some face south)
the plate boundary changes direction
flipping on Earth's magnetic field
change of heat in the magma
19
Magnetic field is due to spinning iron in
mantle
core
asthenosphere
outer core
20
What plate movement causes Volcanic Arcs?
transform
subduction
divergent
convergent
21
Continental crust is thinner and denser than oceanic crust.
True
False
22
Why is the magnetic field important?
Allows liquid water on Earth to exist
All the above
Allows Earth to have an atmosphere
Stops solar wind from reaching Earth

Tectonic Plate Quiz Flashcards | StudBud