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Duplicate of Chapter 10 Plate Tectonics Flashcards | StudBud
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Duplicate of Chapter 10 Plate Tectonics
Duplicate of Chapter 10 Plate Tectonics
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#plate tectonics #earth #year 9
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1
What occurs at diverging boundaries?
tsunamis and island formation
subduction and loss of plate matter
rift formation and volcanoes
earthquakes and volcanoes
2
oceanic crust are denser and heavier because they have
more silicon
less lead and uranium
more iron and magnesium
less hydrogen and oxygen
3
Subduction creates
earthquakes and crevases
continents and plates
mid-ocean ridges and rifts
volcanoes and ocean trenches
4
New material is added to plates at
subduction zones
faults
mid-ocean ridges
volcanoes
5
Australia is located on which plate?
antarctic
pacific
scotia
indo-australian
6
Which land mass did Australia separate from most recently according to scientists?
africa
europe
asia
antarctica
7
There are two types of crust
oceanic and continental
upper and lower
pacific and atlantic
new and old
8
magnetic striping suggests that
the magnet field of the Earth has changed over time
the iron content of rocks changes over time
crust material is lost over time
the continents were once joined
9
the plates are believed to move due to
movement of material in the mantle
collision forces with other plates
earthquakes and volcanoes
gravity
10
What occurs at converging boundaries?
sea-floor spreading
rift and island formation
subduction and earthquakes
mountains and volcanoes
11
The continents may have once been combined in one super-continent called
Gondwana
Pangea
America
Laurasia
12
Which of the following is not evidence for plate tectonic theory
global warming
thicker sediment away from ridges
newer rocks near ridges
magnetic striping
13
The Earth's crust is broken into pieces called
pieces
plates
continents
rifts
14
the convection current which moves that plates is believed to occur in the
asthenosphere
core
crust
lithosphere
15
Subduction zones in the ocean cause
tsunamis
mountains
island arcs
rift formation
16
The diagram shows which type of plate movement
converging
diverging
transform
spreading
17
The theory of 'continental drift' was proposed by
Charles Darwin
Charles Lyell
Alfred Wegener
Harry Hess
18
Scientists believe that Australia's flora and fauna are unique because
it has been isolated from other continents for a long time
the continent has moved north over time
many plant and animal species have been introduced
our climate is very hot and dry
19
The theory of plate tectonics suggests that the continents separated by
rifting
continental drift
subduction
earthquakes
20
Evidence for continental drift includes
similar fossils on different continents
the ring of fire
all of the above
the great global rift
21
Which is true for this diagram?
10 is the outer core and 11 is the mantle
8 is the crust and 11 is the lithosphere
5 is the inner core and 8 is the lithosphere
6 is the asthenosphere and 10 is the mantle
22
the addition of new material at ocean ridges causes
subduction
sea-floor spreading
crust folding
earthquakes
23
The theory of continental drift was proposed in
the 1950s
the 1720s
the 1850s
the 1910s