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Chapter 5 test review Flashcards | StudBud
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Chapter 5 test review
Chapter 5 test review
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plate tectonics
Flashcards
48 cards
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Practice quiz
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Questions
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Answers
1
What was Wetener's continental drift idea
the continents have moved slowly apart
the continents are moving slowly together
the continents have always been located where they are now
none of these
2
in the Hawaiian islands, the youngest volacno is
about to subduct into a deep sea trench
topped by limestone
above a mid-ocean ridge in the Pacific
above a hot spot
3
similar fossil records across continents was evidence for continental drift
true
false
4
Like the Cascades, the Sierra Navadas are the result of
ocean-ocean convergence
transform motion like that at the San Andreas Fault
continent-continent convergence
subduction of an oceanic plate beneath a continental plate
5
the magnetic polarity evidence indicates that there were two north magnetic poles in the past
true
false
6
Scientists didn't accept the continental drift idea because
there were many other ways to explain the evidence
wegener was not liked and no one listened to him
he couldn't explain the mechanism behind it
there was almost no evidence of it
7
the most common type of minerals that record the direction of the magnetic field
copper
coal
magnetite
iron
8
early 20th century hypothesis that the continents move over Earth's surface
subduction
convergent plate boundry
continental drift
sea floor spreading
9
the thickest sediments in the ocean basins are found
none of these
in the furthest distance from the mid-ocean ridge
in the flat, featureless regions
at the top of the mid-ocean ridge
10
magnetic polarity stripes
end at a deep sea trench
end at the edge of a continent
end at a mid-ocean ridge
a or b
11
when were the continents last all joined together
3 billion years ago
3 million years ago
30 million years ago
300 million years ago
12
since new oceanic crust is being created
none of these
the earth must be getting larger
mountains must be rising somewhere
old crust must be destroyed somewhere
13
the magnetic north pole
is in the southern hemisphere
has moved over the years
is in the same place as the geographic north pole
is in northern Canada
14
circular current of warm material rising and cool material sinking
plate boundary
guyot
continental rifting
convection cell
15
the continents including the continental margins can be pieced together like a puzzle
false
true
16
edge where two lithospheric plates move apart
transform plate boundary
divergent plate boundary
convergent plate boundary
17
new oceanic crust is created
at deep sea trenches
at long, linear chains of volcanoes
at mid-ocean ridges
within abyssal plains
18
edge where two lithosphere plates come together
transform plate boundary
divergent plate boundary
convergent plate boundary
19
magnetic polarity evidence supports the theory of continental drift
true
false
20
splitting of a continent at a divergent plate boundary
mid ocean ridge
continental drift
continental rifting
transform fault
21
Volcanoes are found at ________plate boundaries
convergent and divergent
convergent
divergent
transform
22
flat topped underwater mountain
mid ocean ridge
hotspot
guyot
abyssal plane
23
sinking of one lithospheric plate beneath another
transform
convergence
subduction
divergence
24
plume of hot material that rises through the mantle and can cause volcanoes
guyot
mid ocean ridge
epicenter
hotspot
25
edge where two lithospheric plates slide past one another
transform fault
transform plate boundary
plate boundary
mid ocean ridge
26
fracture in rock where one plate slides past another
transform plate boundary
transform fault
plate boundary
subduction
27
During the time of Pangaea organisms now separated by continents lived side by side
true
false
28
coal is mined in many cold regions, but it forms in tropical climates
false
true
29
Wegener gave up on continental evidence because he had no mechanism
true
false
30
the best explanation for the past magnetic polarity of Europe and North America is
the pole stood still and the continents moved
the north magnetic pole moved
none of these
the continents mo9ved and the north pole moved
31
Mountain ranges on both sides of the Atlantic
are just separate mountain ranges
are the same height and width
have ancient fossils and coal seams
have the same rock types, structures and ages
32
location where two lithospheric plates meet
sea floor spreading
epicenter
plate boundary
convection cell
33
very flat areas that make up most of the ocean floor
hotspot
transform fault
abyssal plain
mid ocean ridge
34
Plate tectonics theory states that
continents drift but scientistsw do not yet know why
Earth's geography has been the same for all time
Earth's geography is continually changing
all geological activity happens at plate boundaries
35
submerged,outer edge of the continent
continental margin
abyssal plain
guyot
mid ocean ridge
36
During the time of Pangaea there was no Atlantic Ocean
false
true
37
large, continuous mountain range found within an ocean basin
transform fault
transform plate boundry
the rockies
mid ocean ridge
38
Wegener explained that Mesosaurus fossils were found on Africa and S. America this way
Mesosaurus swam across the Atlantic Ocean
Africa and S. America were joined together then broke apart
none of these
a land bridge across the Atlantic connected the 2 continents
39
point on Earth's surface directly above the focus of an earthquake
epicenter
volcano
transform fault
40
the outlines of the plates are located by mapping
the locations of earthquake faults
continental margins
mid-ocean ridges
earthquake epicenters
41
Earthquakes happen at ________plate boundaries
convergent
divergent
all three
transform
42
deepest parts of the ocean
guyots
mid ocean ridge
trench
abyssal plain
43
the longer it takes for a sound wave to return to the ship
the deeper the water is
the colder the water is
the shallower the water is
the more layered the water is
44
____crust subducts under ____crust because it is____
oceanic;continental;denser
continental;oceanic;buoyant
oceanic;continental;bouyant
continental;oceanic; denser
45
slab of lithosphere that can move over Earth's surface
epicenter
hotspot
plate
trench
46
before they could make seafloor maps, scientists thought the seafloor was
was completely flat
was dotted with lots of small hills, but nothing else
was just like the topography of the continents
had many long mountain ranges, like Japan
47
an island arc forms when an oceanic plate subducts beneath an oceanic plate
false
true
48
the mechanism for moving continents
continental drift
sea floor spreading
continental rifting
subduction
