Transcript Earth Science Exam Review 6x

EX AM
REVIEW
P OW E R P O I N T 6
he breakdown of ozone into oxygen results
from the electromagnetic absorption spectrum
of ozone. This production of oxygen in the
ozone layer is caused by exposing ozone to a
strong source of which type of
electromagnetic radiation?
A radio waves
B microwaves
C infrared light
D ultraviolet light
Hawaii is composed mainly of
volcanoes with gentle slopes and
large surface areas. Which
characteristics best describe the lava
these volcanoes have released?
A relatively fluid and low viscosity
B highly viscous and relatively
cool
C mix of hot gas and rock shards
Which statement describes a result of
tectonic plate subduction that functions to
help produce new volcanoes?
A The heat deep in the crust melts the
oceanic crust and reduces its density.
B Pressure from the continental plate
transforms sediments into liquid rock.
C The continental plate scrapes a layer
of rock and sediment from the oceanic
plate.
The heat deep in the crust melts
the oceanic crust and reduces its
density.
Which process is most likely to
produce a volcano with gentle slopes?
A Magma with a low silica content
migrates to the surface of oceanic
crust.
B Oceanic crust collides with and
subducts beneath the continental
crust.
C Magma is enriched with silica as it
moves upward through the crust.
Magma with a low silica content migrates to the surface of
oceanic crust.
Which statement describes an
aspect of tectonic plate motion
directly caused by density
differences among tectonic plates?
A Ocean plates move outward
from the mid-ocean ridge.
B When ocean and continental
plates collide, the ocean plate is
subducted.
WC Continental plates are thicker
and contain older material than
ocean plates.
When ocean and continental plates
collide, the ocean plate is
subducted.
A volcano found in the center of a tectonic
plate tends to be a result of which
phenomenon?
A strong earthquake
B activity at a hot spot
C pressure in thick sediments that
produces heat
D unusually excessive erosion that wears
away bedrock
Which of these is a tectonic event that is
most likely to contribute to the
formation of a sedimentary basin?
A erosion of material from around
the hardened neck of an ancient volcano
B exposure of clastic rocks to intense
levels of heat and pressure
C divergence of two crustal plates
forming a long rift
Which characteristic of the
asthenosphere helps explain the
evidence of crustal-plate motion?
A the magnetic properties
B the semiliquid physical state
C the ability to deflect solar winds
D the ability to absorb heat energy
The Himalayan Mountain chain is the youngest
and tallest mountain chain on Earth. Which
phenomenon contributed most to this area of
continental buildup?
A erosion of surrounding continental
materials
B eruptions of continental shield volcanoes
C convergence of continental plates
Which layer of Earth is the source
of lava that erupts from volcanoes?
A asthenosphere
B inner core
C outer core
D lithosphere
Which of the following stream
characteristics most directly
affects stream depositions?
A gradient
B elevation
C base level
D water quality
Which of these best explains how tectonicplate movement causes the formation of
mountain ranges?
A Convection currents in the mantle
force two plates to collide.
B Sediment builds upward due to
crushing forces of subducting plates.
C The plates separate, allowing the
asthenosphere to push through and later
cool.
Which crustal feature forms when two continental plates
collide?
A trenches
B rift zones
C tidal zones
D mountain ranges
Which of these is the most serious impact to an ecosystem
after a tornado?
A an increase in biodiversity
B soil erosion along with water pollution
C the growth of plants in newly cleared areas
D animals relocating to different habitats
Which feature results when
plates of different densities
converge and one plate slips
under the other?
A a fault
B a ridge
C a trench
D a rift zone
Which scale is used to report
the intensity of an earthquake?
A Saffir-Simpson Scale
B Modified Mercalli Scale
C Richter Magnitude Scale
D Moment Magnitude Scale
Tectonic motion caused tension
between plates in Earth’s crust. A
sudden release of this energy
occurred. Based on this
information, which event happened?
A subsidence
B earthquake
C volcanic eruption
D meteoroid impact
Which ongoing process causes the buildup
of energy that is released at a later time
when an earthquake occurs?
A Nuclear reactions in Earth’s
lower crust release electromagnetic
waves.
B Jagged edges along a fault
generate friction between two
moving tectonic plates.
C Tectonic plates near a fault
continue to move even though the
fault remains motionless.
Tectonic plates near a fault
continue to move even though the
fault remains motionless.
Scientists measure the increasing height
of the Himalaya Mountains. Which of the
following provides the best reason for
the height increases of these mountains?
A a convergent boundary between
the Eurasian Plate and Indo-Australian
Plate
B a divergent boundary between the
African Plate and South American Plate
C a subduction boundary between
the Nazca Plate and South American
Plate
a convergent
boundary between the
Eurasian Plate and Indo-Australian Plate
Which features form when magma
emerges between two diverging
oceanic plates?
A ocean trenches
B fault boundaries
C mid-ocean ridges
D composite volcanoes
Which feature does not form
as a result of tectonic plates
diverging?
Atrench
B rift valley
Cocean basin
D mid-ocean ridge
Which of these explains how a
trench can form?
A two oceanic plates converging
B two continental plates
converging
C two continental plates diverging
D two oceanic plates diverging
Which of these serve as protective barriers along
coastlines and are often destroyed when hit by a strong
hurricane?
A the erosion of land along the coastline
B the buildup of dunes along the coast over time
C the new construction of buildings along the
coastline
Which of these natural disasters are
the most unpredictable?
A earthquakes
B hurricanes
C tornados
D blizzards