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Plate Tectonics Flashcards | StudBud
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Plate Tectonics
Plate Tectonics
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#8thgradeearthscience, #Missisippi
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1
Convection currents in the mantle begin with...
the core cooling off the mantle making it more dense and sinking
the core heating up the mantle making it less dense & rising
2
Which of the following is an accurate description of the lithospheric plates
Malleable
easy to move
rocky & brittle
semi-liquid
3
An analogous structure is
embryos that look like; have a common ancestor
Structures that are very similar; came from common ancestor
Structures useful to ancestors; no longer have a function
Structures with similar functions; no common ancestor
4
what is being formed in the image
chromosomes
proteins
genes
nitrogen base pairs
5
plastic / semi-liquid flowing layer that has convection currents that drive plate motion
outer core
lithosphere
crust
asthenosphere
6
The similarity in homologous structures suggests
a shared common ancestor
co-evolution
natural selection
selective breeding
7
A slight difference in the same species is called ____________
Overproduction
Competition
Variations
Community
8
Which of the following caused the Hawaiian Islands to form?
hot spots
mid ocean ridges
convergent boundaries of 2 ocean plates
subduction zones
9
Why were scientist skeptical of Wegener's evidence for Continental Drift?
Wegener could not explain how rock layers correlate
Wegner did not provide enough fossil evidence
Wegener didn't provide evidence of a mechanism/force for his ideas
10
identify the process in the image
mitosis
fertilization
binary fission
Meiosis
11
The process of individuals having variations that are more suitable for survival and reproduction is known as
asexual reproduction
selective breeding
resource acquisition
natural selection
12
Where is the youngest rocks found on the crust that provides evidence for sea floor spreading?
in the abyssal plain
in valleys at the base of mountains
near the continents closer to the trenches
Near the mid-ocean ridge
13
What is the main cause of speciation?
Members of a species can mate and produce fertile offspring
More offspring are produced than there are resources to support them.
Populations of a species become isolated from one another.
Organisms with beneficial traits tend to survive.
14
The lithospheric plates of Earth move due to being dragged along by
the high tides of the oceans.
the rotation of Earth on its axis.
convection currents in the asthenosphere.
Gravity pulling plates in different directions
15
What does the red dot in the image represent?
pressure zone
Mid ocean ridge
Subduction zone
16
Ocean Crust is ___________ dense than continental crust.
more
less
17
Identify the reproductive process?
meiosis
sexual reproduction
asexual reproduction
mitosis
18
lithosphere includes what ? Select all that apply
ocean crust
continental crust
uppermost part of the mantle
ocean
19
Is mitosis asexual or sexual?
Asexual
Both
Neither
Sexual
20
What kind of boundary is at a mid ocean ridge?
Hot spot
convergent
divergent
transform
21
Which of Darwin's principals is illustrated in the image?
predators help increase variations in a population
variations in a population allow for better chance of survival of a species
predator-prey relationships lead to extinction
variations are harmful to the development of a population
22
A small section of DNA that codes for a protein is called a ___.
codon
gene
Chromosome
23
destructive plate boundary where the crust is to subduction or crumbled
divergent
transform
convergent
24
Which describes the relationship between earthquakes and volcanoes?
Volcanic eruptions always cause severe earthquakes.
They are most often located where plates boundaries interact at fault lines
Earthquakes and volcanoes are not related in any way.
Earthquakes usually cause volcanoes to erupt.
25
which of the following is evidence of seafloor spreading? select all that apply
fossils found on ocean floor
convection currents in the lithosphere
age of rock on either side of a mid-ocean ridge
pole reversal causing magnetic striping in ocean crust
26
what evidence supports that a boundary is convergent
mid ocean ridges
earthquakes
subduction zones
convection currents
27
What did Wegener call this map he made?
Pandemonium
The new world
Eurasia
Pangea
28
Which cell division process does crossing over (genetic recombination) occur in?
mitosis
meiosis
29
what type of boundary is in the picture?
convergent
transform
divergent
30
What conclusion about plate tectonics could be made based on the image?
similar climate allowed same animals to live in each place
ice bridges formed allowing between migration the continents
erosion destroyed land between then two continents
continents were once joined together due to similar fossils on the coast
31
Which of Wegener's evidences does this image support?
Puzzle-like fit (patterns in the geometric shapes of continents)
seafloor spreading
Forces erode mountains in different locations.
mid-ocean ridges.
32
what can happen at divergent boundaries
plates move apart, magma rise, & volcanoes form
plates stop moving & create a hot spot
plates slide past each other
plates collide and form volcanic mountains
33
Which of the following processes is a result of meiosis?
making new gametes/haploid cells
asexual reproduction
growing new skin
repair a cut
34
Which modern day theory of plate tectonics improved & strengthen Wegener's Continental drift ideas?
glacier grooves in now warm regions
fossil records that correlated
climate evidence of tropical plants in now cold regions
the process of seafloor spreading provided a mechanism for drift
35
What does the bracket represent in the image of heredity material?
gene
chromosome
36
Which of the following matches the description: broken into plates
Mantle
Asthenosphere
Lithosphere
Core
37
Which of the following boundaries will produce a volcanic mountain
two continental crust at a convergent boundary
two continental crust at a transform boundary
continental crust & oceanic crust at a convergent boundary
two continental crust at a divergent boundary
38
what will form at this boundary?
rift valley
Continental volcanic Mountains & a deep sea trench
volcanic Island Arc & deep sea trench
Mid ocean ridge & volcanoes in the ocean
39
How do glaciers provide evidence for pangea?
they prove that ice ages occurred over the entire Earth
provide evidence of land bridges forming
evidence continents with similar groove patterns were joined farther south
provide evidence that global warming causes ice caps to melt
40
When two tectonic plates slip or slide past one another, what type of boundary is it called?
transform
divergent
state
convergent
41
The theory of plate tectonics attempts to explain the
gravitational forces of Earth.
composition of Earth's inner regions.
The mechanism for movement of Earth's upper layers.
layering of sedimentary rock.
42
Which list is correct from the interior to the surface of earth?
outer core, inner core, mantle, crust
crust, mantle, outer core, inner core
inner core, outer core, mantle, crust
crust, mantle, inner core, outer core
43
A boundary where two plates come together, or collide, is called a
Hot spot
divergent boundary.
transform boundary.
convergent boundary.
44
Homologous structures have...
different function, similar structure
different structure, similar function
45
What is the lithosphere?
Solid rocky part of Earth crust and uppermost mantel that has faults
Part of the upper mantle that is plastic and flowing
46
What landform is created when two continental plates such as when the Indian & Eurasian plate collided?
canyon
Continental volcanic mountain range
rift valley
Continental mountain range
47
constructive plate boundary where new crust is formed
transform
convergent
divergent
48
What is the outcome of mitosis?
2 identical diploid cells
4 unique haploid cells
