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041: 8.9AB Plate Tectonics - Theory & Land Formations Flashcards | StudBud
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041: 8.9AB Plate Tectonics - Theory & Land Formations
041: 8.9AB Plate Tectonics - Theory & Land Formations
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Plate Tectonics Middle school
Flashcards
28 cards
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Practice quiz
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Questions
28
Answers
1
Which two processes destroys/recycles crust?
Big Mouths
Convection current
Seafloor Spreading
Subduction
2
Which process builds up or makes more crust?
Seafloor spreading
Folded Mountain
Trenches
Subductions
3
Rocks found along divergent boundaries are
oldest away
from the plate boundary
False - rocks are younger as you move away from the boundary
True - rocks are younger closer to the boundary
4
Which evidence does not support the Theory of Pangea?
Signs of plucking
Human Bones
Fossils
Continents fits together like puzzle.
5
The name "Ring of Fire" is due to ...
Location of Volcanoes
Kaijuus
Movement of plates
Location & Depth of Earthquakes
6
The Oceanic Pacific plate is know as ...
Transform boundary
Atlantic Ocean
Weddding ring
Ring of Fire only
7
Land Feature: Divergent =
Himalayan Mtns
Mid Atlantic Ridge
Mariana Trench
Africa's Rift Valley
8
When
ocean
and
continental
plates collide, which plate subducts beneath the other?
Neither
Oceanic, it's more dense
Oceanic, it's less dense
Continental, it's less dense
9
Plate Boundary?
Transform
Convergent
Divergent
Dinner
10
Which item does the
diagram show
to support the theory of Continental Drift?
migration patterns
fossil evidence
glacialevidence (plucking)
sea floor spreading evidence
11
Sudden movement of plates is caused by
The Force.
Sus.
Unbalanced Forces.
Balanced Forces.
12
What type of boundary is shown?
deep-sea sediment
Convergent
Divergent
Transform
13
Seafloor spreading occurs when two plates
slip pass each other creating earthquakes.
collide into each other.
are moving away from each other creating mountain ridges.
one plate subducts beneath another less dense one.
14
What 3 items are why Alfred Wegener's Continental Drift Theory accepted by the science community?
Hess & Holmes work had not happened yet.
People felt that there wasn't enough evidence.
People were closed minded and like diet coke.
He could not explain how the plates moved.
15
Plates pass by each other. What kind of plate boundary is it?
Divergent
Convergent
Transform
Stationary
16
Seafloor spreading occurs when two plates
Collide into each other
One plate subducts beneath another less dense one
Diverge from each other creating ridges
Slide past each other creating earthquakes
17
Land Feature: Continental plates divide =
rift valleys
trenches
ridges
island arcs
18
Land Feature: Continental & Continental collide =
Volcanic mountains
Trenches
Folded mountains
Valley
19
Land features such as island arcs, trenches, volacanos, mountains, valleys, and cause earthquakes & tsunamis occur....
Ring of Fire only.
anywhere on earth, it's random!
Africa only.
along plate boundaries.
20
Most of earth's volcanos are formed from
Meteorites that strike the earth.
meeting of plates.
sediment build up.
glacial melting.
21
Oceanic Plates Colliding =
Volcanic Islands
Folded Mountains
Trench
Sunduction
22
What type of plate boundary is shown?
convergent - continental continental
transform - faults
convergent - oceanic continental
convergent - oceanic oceanic
23
Most obvious evidence for continental drift includes how similar the coast line is of these two continents:
Africa and N. America
S. America and Africa
Australia and Antarctica
N. America and S. America
24
Underneath oceans mountain ranges are created. This plate is:
Convergent
Divergent
Transform
25
What type of plate boundary created the Aleutian Islands?
Dividing: Oceanic & Continental
Colliding: Oceanic & Oceanic
Colliding: Continental & Continental
Transform: Oceanic & Continental
26
In a convection current, heat tends to:
Fall
Float
Rise
Sink
27
Land Feature: ?
Folded Mountains
Faults
Island Arcs
Volcanic Mountains
28
Rocks found along divergent boundaries are
youngest away
from the plate boundary
True - rocks are younger as you move away from the boundary
False - rocks are younger closer to the boundary
